1. you can buy a 6-hour phone card for $5.00, but the fine print says that each minute actually costs you 1.5 minutes of time. what is the equation that models the number of minutes left on the card compared with the number of minutes you actually talked? what is the graph of this equation?

Let r = 3. what is the value of r + 58?

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

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me