Simplify the expression. Assume that all variables are positive when they appear.
? 
A. 
B. 300x2
C. 100x2
D. 
Answer: D
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Round the amount to the nearest cent.$46.266
A. $46.26 B. $46.00 C. $46.27 D. $46.30
Solve the problem.The owner of a video store has determined that the profits P of the store are approximately given by 
where x is the number of videos rented daily. Find the maximum profit to the nearest dollar.
A. $502 B. $225 C. $277 D. $450
Solve the problem.Mary lives on a corner lot. The neighborhood children have been cutting diagonally across her lawn instead of walking around the yard. If the diagonal distance across the lawn is 
and the longer part of the sidewalk is twice the shorter length, how many feet are the children saving by cutting across the lawn? Round to the nearest foot if necessary.
A. 17 ft B. 13 ft C. 10 ft D. 40 ft
Solve the problem.The graph shows the total sales in thousands of dollars from the distribution of x thousand catalogs. Find the average rate of change of sales with respect to the number of catalogs distributed from 10 to 50.
Number (in thousands)
A. 
B. 2
C. 1
D. 