Solve.The length of a rectangle is 10 inches more than its width. If 5 inches are taken from the length and added to the width, the figure becomes a square with an area of 400 square inches. What are the dimensions of the original figure?
A. 15 in by 20 in
B. 20 in by 20 in
C. 10 in by 20 in
D. 15 in by 25 in
Answer: D
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Solve the equation and check your solution.
= - 
A. -2, 2 B. 2 C. -2, 0, 2 D. no solution
Solve the problem.A size 4 dress in Country C is size 42 in Country D. A function that converts dress sizes in Country C to those in Country D is 
Find a formula for the inverse of this function.
A. f-1(x) = x - 38
B. f-1(x) = 
C. f-1(x) = x + 38
D. f-1(x) = 
Multiply. Assume all variables represent nonnegative real numbers.
? 
A. 5
B. 10
C. 10
D. 5
Estimate the interval(s) on which the function is increasing and decreasing.f(x) = -3x2 - 5x + 4
A. increasing on (-?, -2.26); decreasing on (-2.26, ?) B. increasing on (-2.26, -0.83); decreasing on (-0.83, -2.26, ?) C. increasing on (-?, -0.83); decreasing on (-0.83, ?) D. decreasing on (-?, -0.83); increasing on (-0.83, ?)