Admission to the zoo is $30. with a student id, admission is $24. how much is the discount?

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°

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?