Find the best buy (based on cost per unit).You have a coupon for 87 cents off Brand A cereal and a coupon for 43 cents off Brand B. A box of 
cereal costs $3.34 for 14.5 ounces. A box of Brand B cereal costs $4.52 for 21.5 ounces. If you use a coupon, which cereal is the better buy?
A. Brand B
B. Not enough information
C. Brand A
D. Equal value
Answer: C
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Evaluate the line integral of f(x,y) along the curve C.f(x, y) = y + x, C: x2 + y2 = 9 in the first quadrant from (3, 0) to (0, 3)
A. 36 B. 9 C. 18 D. 0
Solve the problem.An auxiliary fuel tank for a helicopter is shaped like the surface generated by revolving the curve 
, - 5 ? x ? 5, about the x-axis (dimensions are in feet). If a cubic foot holds 7.481 gallons and the helicopter gets 3 miles to the gallon, how many additional miles will the helicopter be able to fly once the tank is installed (to the nearest mile)?
A. 125 B. 94 C. 188 D. 376
Evaluate the expression.
2
A. 
B. - 
C. 
D. - 
Solve. Graph the solution on a number line, and express it in interval notation.9x + 9 > 3(2x + 1)
A. x ? -2, [-2, ?)
B. x < -2, (-?, -2)
C. x ? -2, (-?, -2]
D. x > -2, (-2, ?)