A pool charges $4 each visit, or you an buy a membership. A membership is valued at $100. Which inequality represents how many times a person should use
the pool so that the mmembership is less expensive than paying each time?

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.

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota

Determine domain and range, largest open interval, and intervals which function is continuous.