WILL MARK BRAINLIEST FOR CORRECT ANSWER!! Find an expression which represents the difference when (9x-10y) is subtracted from (-8x-8y) in simplest terms.
Basically what is (9x-10y)-(-8x-8y)?

Two vertices of a polygon are (7, −18) and (7, 18) . what is the length of this side of the polygon? enter your answer in the box. units

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.