Solve the problem.Jay drove 288 kilometers at the average rate of 72 kilometers per hour. How long did the trip take?
A. 
hour
B. 4 hours
C. 5 hours
D. 3 hours
Answer: B
Mathematics
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Solve.550 = n ? 11
A. n = 6050 B. n = 539 C. n = 550 D. n = 50
Mathematics
Fill in the blank with one of the words or phrases listed below.
The number in a fraction below the fraction bar is called the 
.
A. exponent B. numerator C. denominator D. base
Mathematics
Use the properties of angle measures to find the measure of each marked angle.
a = (4x + 14)°, b = (5x + 31)°
A. 34°, 56° B. 5°, 85° C. 34°, 31° D. 5°, 175°
Mathematics
Solve the problem. Use 3.14 for ?.Find the cost to asphalt a circular racetrack if asphalt costs $30 per 100 ft2. (Round to the nearest dollar.) r = 100 ft R = 145 ft 
A. $19,806 B. $10,386 C. $9420 D. $7630
Mathematics