Add or subtract as indicated. Write the answer in simplest form.
- 
A. - 
B. - 
C. -10
D. - 
Answer: A
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Graph the inequality.7x - 11y + 38.5 > 0
A. 
B. 
C. 
D. 
Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
- 4 ? x ? 4, about the x-axis (dimensions are in feet). How many cubic feet of fuel will the tank hold to the nearest cubic foot?
A. 4 B. 13 C. 17 D. 7
Find the future value of the annuity due. Round to the nearest cent.$1500 deposited at the beginning of each year for 12 years at 6% compounded annually
A. $48,804.91 B. $23,804.91 C. $26,823.21 D. $20,957.46
Solve.At Allied Electronics, production has begun on the X-15 Computer Chip. The total revenue function is given by 
and the total profit function is given by 
where x represents the number of boxes of computer chips produced. The total cost function, C(x), is such that 
Find C(x).
A. C(x) = 2x + 11 B. C(x) = 3x + 16 C. C(x) = 4x + 7 D. C(x) = -0.3x2 + 4x + 11