Find the value of each variable. Show all your work.

1) x = 3 y = 5

2) x = 7

Step-by-step explanation:

4x + 3 = 15

4x = 13

x = 3

3y = 5x

3y = 5(3)

y = 5

8x + 7 + 3x + 6 = 90

11x = 77

x = 7

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere