Pls help me!!
Which two equations are equivalent?
y= 1/2x+3
y=x+6
2y=x+6

first and third

Step-by-step explanation:

Consider

y = x + 3 ( multiply through by 2 )

2y = x + 6 ← third equation

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