The radius of a cylindrical construction pipe is 3.5ft. If the pipe is 33ft long, what is its volume?

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Im literally having a mental breakdown

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.