What is the height of a parallelogram with a base of 5cm and an area of 45cm2?

Pls i’m dumb as heck i’ll give y’all so many points if that encourages you

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.

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?