Solve the problem.The total profit from selling x units of cookbooks is 
Find the marginal average profit function.
A. 28x - 35
B. 28 - 
C. 28 - 
D. 28x - 69
Answer: B
Mathematics
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Complete.540 min = hr
A. 22 B. 9 C. 216 D. 4
Mathematics
Solve the inequality.(x + 4)(x - 1) > 0
A. (-?, -4) or (1, ?) B. (-?, -4) C. (-4, 1) D. (1, ?)
Mathematics
Find the domain of x in the expression 
.
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the rational equation. If there is no solution, state this as your answer.
- 
= 1
A. 
B. 
C. {2}
D. 
Mathematics