Solve the problem.An auto repair shop charged a customer $532 to repair a car. The bill listed $82 for parts and the remainder for labor. If the cost of labor is $45 per hour, how many hours of labor did it take to repair the car?
A. 9 hr
B. 10.5 hr
C. 11 hr
D. 10 hr
Answer: D
Mathematics
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Classify the angle as acute, right, obtuse, or straight.36°
A. straight B. right C. obtuse D. acute
Mathematics
Solve the problem.Barbara is paid $10.88 per hour for a 40-hour work week. One week she worked 45.5 hours. She is paid time-and-a-half for overtime. What is Barbara's overtime pay for the week?
A. $524.96 B. $68.09 C. $89.76 D. $495.04
Mathematics
Express the sum using summation notation. Use a lower limit of summation not necessarily 1 and k for the index of summation.4 + 
+ 5 + 
+ . . . + 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Write ratios in simplest form.The table below shows the amounts of pollutants (in parts per million) in a sample of rainwater. Find the ratio of pollutant A to pollutant B. 
A. 
B. 
C. 
D. 
Mathematics