a. 2 * 7,000,000,000 = ?
b. Hint: 1 mile = 1760 yards.
There are about 7 billion people on Earth. Suppose that they all lined up and held hands, each person taking about 2 yards of space.
a. How long a line would the people form?
b. The circumference of the Earth is about 25,000 miles at the equator. How many times would the line of people wrap around the Earth?
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