If a triangle has a 50 degree angle and a 68 degree angle, how many degrees is the third angle

What is the simplified value of the expression below?
-8* (-3)
-24
—11
оооо

Simplify
(3x^2-5xy+2y-9)+(x^2-10y+6xy)

Which quadrilateral with side lengths shown will have a perimeter of 20 meters?

3 m, 7 m, 3 m, 7 m
6 m, 5 m, 4 m, 6 m
6 m, 3 m, 5 m, 5 m
7 m, 4 m, 4 m, 6 m

A father complained that his son's allowance of $5 per week
was too much. The son replied, "Okay, Dad. How about this?
You give me a penny for the first day of the month, 2 cents for
the next, 4 cents for the next, 8 cents for the next, and so on for
every day of the month." The father readily consented. Who was
the more clever? What would the son's allowance be on day 31?

WILL GIVE BRAINLIST IF RIGHT!
In a petri dish, a certain type of bacterium doubles in number every 45 minutes. There were originally 32, or 2^5 bacteria in the dish. After 180 minutes, the number of bacteria has doubled 4 times, multiplying by 2^4. Now the population of bacteria is 2^5 • 2^4. Expressed as a power, how many bacteria are in the petri dish after 180 minutes?

A.) 2^4
B.) 2^20
C.) 4^9
D.) 2^9​

Which statement is true about points located in quadrant Il in the coordinate plane? A. The x-coordinate is negative, and the y-coordinate is positive. O B. The x-coordinate is negative, and the y-coordinate is negative. C. The x-coordinate is positive, and the y-coordinate is positive. O D. The x-coordinate is positive, and the y-coordinate is negative. SUBMIT​

Check my answers?
--
Solve the system of equations
Y = 8x
-5x -5y = 0
My answer : (0,0)
--
y = 5x - 3
3x - 8y = 24
My answer : (0,-3)
--
y = -3
-3x - 5y =6
My answer: (3,-3)

4) – 2x2 + 6x + 5 = 0
a. nonreal
b. real, irrational, and unequal
c. real, rational, and equal
d. real, rational, and unequal

Angelina went out to eat dinner, and the meal cost $100.00. If Angelina received a 19% discount, what was the total value of the discount?

The data {(0, 14), (1, 12), (2, 10), (3, 8), (4, 6)) is:
linear.
nonlinear.

In what quadrant is the point (5, −8) located?
A) I
B) II
C) III
D) IV

I NEED AN EXPLANATION FAST!

There are 90 notebooks and a bear and 30% of the notebooks are orange how many orange notebooks are in the bin

SOMEONE HELP ME I REALLH NEED IT Which operation would you do first 5-(5+3) divided by 2

A. Subtract
B.divide
C. Multiply
D. Add

A 10-ft tree makes an 18-ft shadow. About how tall is a person who makes a 12-ft shadow at the same time?

can someone please help :/? question is in the picture.

In this formula, C represents the total charge for babysitting and I represents the
number of hours the child is kept. How much should Joe pay if his child is at the
babysitting service for 3 hours?
C = $5.25 + $2.50H

Please help

In 924,130, the 2 is in the what place

The table below shows the total cost for various pounds of trail mix. Based on the information in the table, how much will 8 pounds of trail mix cost?

2

5
-
3

7.50
-
4

10
-
5

12.50

Which equation represents a line that passes through (2, –left-parenthesis 2, negative StartFraction one-half EndFraction right-parenthesis.) and has a slope of 3?

y – 2 = 3(x + y minus 3 equals 2 left-parenthesis x plus StartFraction one-half EndFraction right-parenthesis.)
y – 3 = 2(x + y minus 3 equals 2 left-parenthesis x plus StartFraction one-half EndFraction right-parenthesis.)
y + y plus StartFraction one-half EndFraction equals 3 left-parenthesis x minus 2 right-parenthesis. = 3(x – 2)
y + y plus StartFraction one-half EndFraction equals 2 left-parenthesis x minus 3 right-parenthesis. = 2(x – 3)

HELP ME PLEASEEEEEEEEEE

An algebraic equation is an equation that includes:

A: No variables one or more variables
B: Only one variable
C: One or more variables
D. Just numbers

Please select the best answer from the choices provided.​

pls help me if you do geometry and really good at this

John needs to take a taxi in New York. A two mile taxi ride cost $3.90. A five mile taxi ride in
the same taxi cost $7.50. If x represents the miles driven and y represents the cost in dollars,
What is the linear equation that would model the cost of a taxi ride?
han intercont form. vaform *

tan a =-4/3 a lies in quadrant 2 B=2/3 b lies in quadrant 1​

A certain drug is made from only two ingredients: compound A and compound B. There are 5 milliliters of compound A used for every 3
milliliters of compound B. If a chemist wants to make 792 milliliters of the drug, how many milliliters of compound A are needed?

An athlete eats 0.25 kg of protein per week while training. How much protein she eat during 5 weeks of training? Write the number in grams.

Find the value of "x" in the figure shown.

On Roberto's shelf there are:
• 7 mystery books
• 6 science books
• 4 history books
• 3 adventure books
Roberto will randomly choose 1 book to read. What is the probability in decimal form that he will choose a history book?

Plllzzzz answer this question, if Ronny when 68 miles per hour in his Tesla sports, how long will it be till he gets to his brother's house, his house is 92 miles from him consider- ring the fact that his wheel popped and lost two hours fixing it since he simply could not go that fast he, reduced his speed by 20 mph, how long will it take him to show up.
yes this is on my test