Multiply and simplify.18 
A. 
B. -162
C. -2
D. 2
Answer: C
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Solve.John owns a hotdog stand. He has found that his profit is represented by the function 
with P(x) being profits and x the number of hotdogs sold. How many hotdogs must he sell to earn the most profit?
A. 31 hotdogs B. 47 hotdogs C. 23 hotdogs D. 30 hotdogs
Find the differential of the function.
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Solve the application problem.The net income y (in millions of dollars) of Pet Products Unlimited from 1997 to 1999 is given by the equation 
where x represents the number of years after 1997. Assume this trend continues and predict the year in which Pet Products Unlimited's net income will be $748 million.
A. 2005 B. 2004 C. 2007 D. 2006
Find the area of the isosceles trapezoid shown below. Round your answer to the nearest hundredth.
