1)There are 200 people in a room. Twenty percent are left handed split evenly between #. Sixty five percent are men. How many right-handed women are there?
2)Darla walks a mile in 15 min and runs a mile in 7.6 in. What fraction of the distance was walked if she travels 1 mi in 10 min?
3)83946 to the 950637 power
4)In 1880 there were 1 billion people in the world, and in 2010 there were 6,821400000 people. Assuming exponential growth, how many years before 2010 were there only 2 people in the world?
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