Jack sold 12 adult tickets and 18 student tickets. the adult tickets cost $11 and the student tickets cost $8.how much money did jack earn selling tickets?

Which statement about the graph of y = 8(0.25)^2

The krasnapolski is a top-of-the-line hotel in amsterdam, the netherlands. among their many services, they rent bicycles to guests. the bicycle checkout is open 24 hours per day 7 days per week and has 50 bicycles on hand. on average, 10 guests request a bicycle each day, arriving completely randomly at all times of the day during the spring and summer seasons. guests keep bicycles for four days on average, with a standard deviation of two days. how long does a guest on average have to wait for a bike? a. approximately 24 hours b. approximately 0.033 hours c. approximately 4 days d. approximately 47 minutes

Two numbers have a sum of -19. one number is x. what expression represents the other number?