Plot the point in a polar coordinate system.
A. 
B. 
C. 
D. 
Answer: A
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Find the limit.
A. 9 B. 27 C. 3 D. Does not exist
Express as a single logarithm and, if possible, simplify.log4 12 + log4 9
A. log4 21 B. log4 108 C. log8 108 D. log8 21
Add and simplify.
+ 
A. 
B. 
C. 
D. 
Solve the problem.Sketch a graph that depicts the amount of water in a 50-gallon tank during the course of the described pumping operations. The tank is initially full, and then a pump is used to take water out of the tank at a rate of 6 gallons per minute. The pump is turned off after 5 minutes. At that point, the pump is changed to one that will pump water into the tank. The change takes 2 minutes and the water level is unchanged during the switch. Then, water is pumped into the tank at a rate of 3 gallons per minute for 3 minutes.
A. 
B. 
C. 
D. 