4. the distance light travels in one year is approximately 5,870,000,000,000 miles. the distance light travels in 100 years is:
(a) 587 × 10^8 miles
(b) 587 × 10^10 miles
(c) 587 × 10^-10 miles
(d) 587 × 10^12 miles
(e) 587 × 10^-12 miles
answer with explanation : )

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