Two equations are shown:

equation 1:
3
4
(x−12)=12
equation 2:
3
4
y−12=12
solve each equation. then, enter a number in each box to make this statement true.

the value of x is:

the value of y is:

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?

I'm confused on this could anyone me and show me what i need to do to solve it.

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.