Solve the problem.The demand for a specialized oil-drilling engine is given by the function D(x) = 
where x is the number of units produced per day and D(x) is the number sold per day. How many units are sold per day if 15 units are produced per day? Round your answer to the nearest whole number.
A. 28 units
B. 76 units
C. 57 units
D. 72 units
Answer: C
Mathematics
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Find percent notation.0.031
A. 0.0031% B. 0.031% C. 31% D. 3.1%
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Solve the equation for the indicated variable.V = 
Bh, for h
A. h = 
B. h = 
C. h = 
D. h = 
Mathematics
Solve the absolute value equation.|5x + 6| + 6 = 11
A. 
B. 
C. 
D. ?
Mathematics
Subtract.
A. 5537 B. 5493 C. 5533 D. 537
Mathematics