Solve the problem.Suppose the tip of the minute hand of a clock is 5 inches from the center of the clock. Determine the distance traveled by the tip of the minute hand in 5.5 hours. Give an exact answer.
A. 50? in.
B. 25? in.
C. 30? in.
D. 55? in.
Answer: D
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Solve the problem.The side of an equilateral triangle is 8 inches shorter than the side of a square. The perimeter of the square is 46 inches more than the perimeter of the triangle. Find the length of a side of the triangle.
A. 24 inches B. 21 inches C. 14 inches D. 22 inches
Evaluate the expression.
A. 10 B. 1 C. 5 D. 20
Solve the problem.The resistance R produced by wiring resistors of R1, R2, and R3 ohms in parallel can be calculated from the formula 
If R1, R2, and R3 are measured to be 3 ohms, 10 ohms, and 8 ohms respectively, and if these measurements are accurate to within 0.05 ohms, estimate the maximum possible error in computing R.
A. 0.018 B. 0.013 C. 0.022 D. 0.026
Phosphorus 32 has a half-life of 14.2 days. If 600 g of this substance are present initially, find the amount present after t days. What amount will be left after 3.55 days? How fast is the phosphorus 32 decaying when t = 3.55? ?
A. 
B. 
C. ?
D. ?