If you paid m dollars for a meal at a restaurant. Write an expression that will represent the amount you will pay, including a 15% tip NEED HELP ASAP

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

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

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?