Problem A

Susan was offered a job that would last only two days. Her boss said she could choose either to earn $100 a day or to start at one penny per hour, and then her salary would double every hour. If Susan were going to work two days for eight hours per day, which would be the best deal $100 per day or starting at one cent per hour with her wage doubling every hour? Which would you choose?

Problem B

When Janet started first grade her parents started saving for her college education. They could only save $25 per week, and they put this money in the bank once a year on December 31. It earned 8% interest. When they started saving, Janet's father said, "We'll never save enough to send her to a good college." About how much money had they saved by the time Janet finished high school?

Problem C

Monica and Pat made money by mowing lawns during the summer. The mower used a mixture of gasoline and oil. They had two gas cans one held three quarts and the other held five quarts. The cans were not marked in any way. The lawn mower required exactly one gallon of gasoline to be mixed with one quart of oil. Using the 3 quart and 5 quart containers, how did the girls measure exactly one gallon of gasoline? Write two different solutions.

Problem D

If it takes five minutes to cut through a 9 foot pipe, how long will it take to cut the pipe into nine equal pieces?