Add. Simplify, if possible.-2 + (-9)
A. -11
B. 12
C. -12
D. 11
Answer: A
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Collect like terms.9x - 6x
A. 3x B. 15x C. -3x D. 3x2
Determine whether the infinite geometric series has a limit. If a limit exists, find it.1 + 
+ 
+ . . .
A. 
B. 
C. 
D. No limit
Solve the problem.The polynomial 
gives the predicted sales volume of a company, in millions of items, where x is the number of years from now. Determine the predicted sales 15 years from now. Round your answer to two decimals, if necessary.
A. 171.54 million B. 198.18 million C. 284.27 million D. 250.79 million
Solve the problem.Mark and Rachel both work for Smith Landscaping Company. Mark can finish a planting job in 2 hours, while it takes Rachel 4 hours to finish the same job. If Mark and Rachel will work together on the job, and the cost of labor is $35 per hour, what should the labor estimate be? (Round to the nearest cent, if necessary.)
A. $26.25 B. $93.33 C. $105.00 D. $46.67