Add or subtract. Simplify the answer.
- 
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.The total sales in dollars of some small businesses fluctuates according to the equation S = A + B sin ?x/6, where x is the time in months, with x = 1 corresponding to January, A = 8500, and 
Determine the month with the greatest total sales and give the sales in that month.
A. March; $12,000 B. September; $5000 C. June; $8500 D. December; $12,000
Write decimal notation.
A. 18.4116 B. 22.116 C. 18.004116 D. 18.04116
Solve the problem.Erika spent 
hr on her computer visiting the history channel and the discovery channel websites. She spent 
hr at the history channel website. How many hours did she spend at the discovery channel website?
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Solve the problem.A comet follows the hyperbolic path described by 
- 
= 1, where x and y are in millions. If the sun is the focus of the path, how close to the sun is the vertex of the path? 
A. 1.2 million B. 19 million C. 4.4 million D. 3.2 million