PLZ HELP
what is the period of the function of h=15cos(1/600d) , give an exact answer

The weekly revenue for a company is r = 3p^2 + 60p + 1060, where p is the price of the company's product. what price will result in a revenue of $1200.

Brad earns $12.75/hr and works 40 hours a week. what is his gross annual income?

Angle 1 and 2 are a linear pair. angle 1 equals x-39 and angle 2 equals x+61 . find the measure of each angle