Solve. Round to the nearest percent if necessary.Enrollment in a class at a local college increased from 130 to 169. What was the percent of increase?
A. 23%
B. 39%
C. 30%
D. 130%
Answer: C
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Graph the pair of parametric equations with the aid of a graphing calculator.x = 4 sin t - sin 4t, y = 4 cos t - cos 4t, 0 ? t ? 2?
A. 
B. 
C. 
D. 
Decide whether the pair of lines is parallel, perpendicular, or neither.12x + 4y = 1624x + 8y = 33
A. Neither B. Parallel C. Perpendicular
Find the exact interest. Use 365 days in a year, and use the exact number of days in a month. Round to the nearest cent, if necessary.$6340 at 7.5% for 51 days
A. $475.50 B. $62.01 C. $67.36 D. $66.44
Solve the problem.A plane climbs from an altitude of 6000 ft to a cruising altitude of 39,000 ft. The plane ascends at a rate of 6600 ft/min. How long will it take to reach cruising altitude?
A. 5 min B. 6 min C. 0.2 min D. 217,800,000 min