1.Let's say it takes about4seconds to count to 10 out loud. How many years will it take to count out loud to a billion? Ignore leap years and round your answer to one decimal place.

2.Suppose we lined up all the people in the world (about 7.4 billion people). Assume that each person occupied16inches of the line. How many times around Earth would they reach? (Earth has a circumference of about25,000 miles.Round your answer to one decimal place.)

times