Solve.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
where c is the cost in dollars, and x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 89 watches
B. 33 watches
C. 44 watches
D. 30 watches
Answer: B
Mathematics
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Simplify. Assume that all variables represent non-negative real numbers.
A. 
B. 
C. 
D. 
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The problem that follows refers to triangle ABC.
?
If 
and 
cm, find C and a.
?
Apply the rules regarding the use of significant digits after all computations are complete.
?
A. 
cm
B. 
cm
C. 
cm
D. 
cm
E. 
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Rationalize the denominator and simplify.
A. 
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C. 28
D. 
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