Find the perimeter Show your work.

A80-foot piece of siding is cut into three pieces so that the second piece is four times four times as long as the first piece and the third piece is five times as long as the first piece. if x represents the length of the first piece, find the lengths of all three pieces.

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

The longer leg of a 30° 60° 90° triangle is 16 times square root of three how long is a shorter leg