Solve the problem.A retailer knows that n games can be sold in a month at a price of 
dollars per game. Assume that he buys each game for 
and sells every one that he buys. If he wishes to make a profit of at least 
per month on sales of this game, how many games must he sell each month?
A. 0 ? n ? 20
B. 20 ? n ? 70
C. 20 ? n ? 50
D. 25 ? n ? 35
Answer: C
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Find the domain of the given function f and find where it is increasing and decreasing, and also where it is concave upward and where it is concave downward. Identify all extreme values and points of inflection. Then sketch the graph of y = f(x). f(x) = log7(x2 + 7)
What will be an ideal response?
Find the volume of the solid generated by revolving the shaded region about the given axis.About the x-axis
A. 
?
B. 
?
C. 
?
D. 
?
Find the perimeter. Use 3.14 for ?.
A. 30.12 m B. 22.56 m C. 35.12 m D. 17.56 m
Suppose that 
times a number is added to 
and the result is positive. What are the possible numbers?
?
A. Any number greater than - 
.
B. Any number greater than 
.
C. Any number greater than 
.
D. Any number greater than - 
.
E. Any number less than - 
.