Rewrite the expression with a positive rational exponent. Simplify, if possible.
? 
A. x22/7
B. x11/5
C. 
D. 
Answer: B
Mathematics
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Solve the problem.Bob owns a watch repair shop. He has found that the cost of operating his shop is given by 
, where c is cost and x is the number of watches repaired. How many watches must he repair to have the lowest cost?
A. 71 watches B. 33 watches C. 35 watches D. 40 watches
Mathematics
Perform the operation indicated. Simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
+ 
= 
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.
- 
= 3
A. 2, 38 B. 2 C. 3, 8 D. -2
Mathematics