Solve the problem.Express as a unit price. A contractor charges $74.98 for 2 hours of work. What is the cost per hour?
A. $37.49
B. $39.49
C. $2.00
D. $74.98
Answer: A
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Answer the question.Tell which of the following distributions would have the most variation.
A. The number of hours of light per day over a one-year period in Mexico City B. The number of hours of light per day over a one-year period at the North Pole C. The number of hours of light per day over a one-year period at the equator D. The number of hours of light per day over a one-year period in New York
Solve the problem.At an altitude of 2900 ft, the engine on a small plane fails. What angle of glide is needed to reach an airport runway that is 3 miles away by land? (Round your answer to the nearest tenth of a degree.)
A. 89.9° B. 11.4° C. 88.9° D. 10.4°
What point on the surface z is closest to the origin?
?
?
Hint : Minimize the square of the distance from 
to the origin.
?
A. 
B. 
and 
C. 
D. 
E. 
and 
Solve the system using the addition method. If the system is inconsistent and has no solution, state this. If the system is dependent, write the form of the solution for any real number x. x + 8y = 51-4x + 7y = 69
A. ? B. (-5, 7) C. (-6, 8) D. (5, 8)