Solve the problem.A rectangular box with volume 277 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base. Express the cost the box as a function of x.
A. C(x) = 2x2 + 
B. C(x) = 4x + 
C. C(x) = 3x2 + 
D. C(x) = 3x2 + 
Answer: C
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Solve the problem.A plane flying a straight course observes a mountain at a bearing of 31.8° to the right of its course. At that time the plane is 
from the mountain. A short time later, the bearing to the mountain becomes 41.8°. How far is the plane from the mountain when the second bearing is taken (to the nearest tenth of a km)?
A. 4.2 km B. 11.4 km C. 10.1 km D. 6.3 km
Find the least common denominator.
, 
A. 45xy3 B. 45x3y C. 45x2y D. 45xy2
Decide if the inequality is true or false.-6 > -8
A. True B. False
Solve the problem.Marty's Tee Shirt & Jacket Company is to produce a new line of jackets with an embroidery of a Great Pyrenees dog on the front. There are fixed costs of $680 to set up for production, and variable costs of $48 per jacket. Write an equation that can be used to determine the total cost, C(x), encountered by Marty's Company in producing x jackets.
A. C(x) = 680 + 48x B. C(x) = 680 - 48x C. C(x) = 680x + 48 D. C(x) = (680 + 48) x