What is the domain and range of the graphed function?

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Solve 2^x=32 and rewrite this equation in a logarithmic form

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?