There are 8 elephants in the zoo. Each elephant eats about 2.16 × 105 pounds of vegetation per year.

The zookeeper asked Nate and Elena to determine how many pounds of vegetation is required to feed all of the elephants. They wrote their solutions in scientific notation.

Nate's Solution Elena's Solution

8 × (2.16 × 105) 8 × (2.16 × 105)

= (8 × 2.16) × 105 = (8 × 2.16) × (8 × 105)

= 17.28 × 105 = 17.28 × 805

= 1.728 × 106 = 1.728 × 806

Who is correct? Explain.

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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

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