Solve.Jim can run 5 miles per hour on level ground on a still day. One windy day, he runs 10 miles with the wind, and in the same amount of time runs 7 miles against the wind. What is the rate of the wind?
A. 
mph
B. 1
mph
C. 5 mph
D. 28
mph
Answer: A
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Identify the numeral as Babylonian, Mayan, or Greek. Give the equivalent in the Hindu-Arabic system.???
A. Greek; 745 B. Greek; 845 C. Mayan; 846 D. Greek; 855
Use the formula for future value, 
to find the missing quantity.A = $6750; P = $5000; r = 7%
A. t = 7 years B. t = 6 years C. t = 5 years D. t = 4 years
Find the solution set for each inequality. Graph the solution set on a number line and write it in interval notation.|x| > -2
A. (-2, 2)
B. (-?, -2) ? (2, ?)
C. (-?, ?)
D. [-2, ?)
Solve the problem.The amount of a certain radioactive isotope present at time t is given by 
grams, where t is the time in years that the isotope decays. The initial amount present is 400 grams. How many grams remain after 20 years? Round to the nearest hundredth.
A. 234.78 g B. 397.87 g C. 681.48 g D. 379.25 g