Solve the problem.Suppose that the manufacturing cost of a precision instrument is approximated by 
where x is the cost of materials and y is the cost of labor. Find 
A. 848
B. 288
C. 648
D. 266
Answer: B
Mathematics
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Evaluate.7x - 4 for x = - 
A. - 
B. - 
C. -18
D. 
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Evaluate or simplify the expression without using a calculator.8 log 109.2
A. 73.6 B. 736 C. 17.7536 D. 7.36
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Evaluate.C(8, 8)
A. 8 B. 0 C. 1 D. 40,320
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Add.(3a + 9c - 7b) + (-7b + 9a - 4c)
A. 12a - 14b + 5c B. 3abc C. 12a - 4b - 11c D. 18a - 4b - 11c
Mathematics