Be hard of math☹️ please help.

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

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?

The reflexive property of congruence lets you say that ∠pqr ≅