Every year, monarch butterflies migrate approximately 2,500 miles from the Great Lakes to central Mexico where they spend their winters. They travel at a speed of 18 miles per hour. In flight, they flap their wings 500 times per minute. About how many times will a single Monarch butterfly flap its wings in order to make the entire trip from the Great Lakes to central Mexico?

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