When amber does her math hw, she finished 10 problems every 7 minutes. how long will it take her for her to complete 35 problems?

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.

What function has a range {yly< 5}? question on picture above^

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount