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- A total of 546 riders are signed up for the bike-a-thon this year. Last year, a typical rider raised between $750 and $1375. Estimate how much money the bike-a-thon might raise this year.
- At last year's bike-a-thon, Ana's pledges totaled $43 per mile, but the course was only 19 miles long. How much money did Ana raise last year?
- After this year's ride, Ana will send thank-you letters and collection envelopes to everyone on the list including her parents. Each collection envelope will need a stamp on it, and each letter will have to be stamped, too. If Ana uses first-class stamps, how much will Ana spend on stamps?
- Four water stations are being set up along the course. The organizer of the bike-a-thon wants to have enough water so that each of the 546 riders can have one bottle of water at each station.
- If you were going to estimate the number of bottles needed, should your estimate be higher or lower than the actual number?
- Based on your answer to Question A, estimate the number of bottles to buy.
- A food store donated 86 boxes of energy bars to give to riders at the rest stations. There are 32 energy bars in each box. How many bars did the store donate?
- Ana once counted the number of times her feet went around with the pedals while riding her bicycle. When her bicycle was in fifth gear, her feet went around 58 times for
of a mile. - About how many times will her feet go around for each mile she rides using the same gear?
- Estimate how many times her feet will go around the pedals if she used the same gear for the whole bike-a-thon.