Heres a set of questions. You have to determine what the variable is. variable = A letter.

1. 7 (m+5) = 21

2. - 2v+9=25

3. 1/3y-18=2

4. 6-8p=38

5. 15=5k-13

Find the simple interest on a loan of $3,500 at 7.8% interest for 9 months

Payton cut out two shapes, as shown, that she will later put together to resemble a house. What is the total area of the two shapes? A.) 20 square units B.) 21 square units C.) 22 square units D.) 23 square units

The volume of a rectangular prism is 2058 cubic cm. the length of the prism is 3 times the width. the height is twice the width. find the height of the prism.

In the diagram, m∠1 = 2x + 1 and m∠3 = 5x + 11. What is the measure of ∠3?

Josephine noticed that out of 10 e-mails she received, 7 were advertisements. What can she predict about the number of advertisements she will receive in the next 100 e-mails? She will receive 7 advertisements. She will receive 10 advertisements.

How do you solve for x in Pythagorean theorem

At a currency exchange, 3 u. s. dollars can be exchanged for 5 japanese yin. how many yin will you receive for 1 u. s. dollar?

What is the volume of 20 grams of an object with a density of 55g/cm^3?

I need the answer 5x-6=14

A ball is dropped from a height of 100 inches the ball bounces, each time reaching a lower and lower height.