Ineed on both i will give you 90 points if u me with both

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?

What function has a range {yly< 5}? question on picture above^

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?