Solve the problem.A box with an open top is to be constructed from a rectangular piece of cardboard with dimensions 14 inches by 21 inches by cutting out equal squares of side x at each corner and then folding up the sides as in the figure. Express the volume V of the box as a function of x.
A. V(x) = x(14 - x)(21 - x)
B. V(x) = x(14 - 2x)(21 - 2x)
C. V(x) = (14 - x)(21 - x)
D. V(x) = (14 - 2x)(21 - 2x)
Answer: B
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Solve the equation.9 = b - 12
A. {-3} B. {3} C. {-21} D. {21}
Solve the problem.Yearly sales at a certain department store follow the model 
where y is the total sales in thousands of dollars and x is the number of years after 1992. In what year will the sales first be less than 
A. 1997 B. 1987 C. 1988 D. 1998
Perform the indicated operation. Simplify the result, if possible.
÷ 
A. 
B. 
C. 
D. 
Two sides and an angle are given. Determine whether the given information results in one triangle, two triangles, or no triangle at all. Solve any triangle(s) that results.B = 65°, b = 2, c = 3
A. one triangle B = 33°, A = 82°, a = 5 B. one triangle C = 32°, A = 83°, a = 7 C. one triangle C = 34°, A = 81°, a = 9 D. no triangle