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1) You are racing in a soap box derby. The front wheels of your car are 6 inches in diameter and the rear wheels are 10 inches in diameter. How many more rotations will a front wheel make compared to a rear wheel over the course of a 989-foot track? (Round your answer to the nearest full rotation))
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2) The square plate of metal seen below is punched with
holes along each edge. The center of each hole is spaced 2.3
cm apart from each other hole and spaced 4.2 cm away
from the edge of the plate. What is the surface area of the
metal plate before the holes were drilled? Express your
answer to the nearest hundredth square centimeter.
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3) Olga is building a cork board for her father. Her original dimensions for the board are 80 cm by 130 cm, but she decides to make each side 20% longer for the final construction. By what percent will the area of the board increase?
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