Solve the problem.A local department store sells carpets in 4 sizes. Each carpet comes in 2 different qualities. One of the sizes comes in 5 colors. The other sizes come in 6 colors. How many choices of carpet are there?
A. 52
B. 46
C. 56
D. 58
Answer: B
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Solve the equation.
- x = 6
A. x = -7 B. x = -7, -3 C. x = -3 D. No solution
For the pair of similar triangles, find the length of the indicated side.
In the outer triangle, the shortest side has length 9, and the middle side has length 12. In the inner triangle, the shortest side has length 3, the middle side has length 4, and the longest side has length 5. Find the length, x, of the longest side of the outer triangle.
A. x = 16 B. x = 20 C. x = 5 D. x = 15
Solve the equation analytically.
x - 
x = 3
A. {90} B. {-45} C. {-90} D. {45}
Remove any dominated strategies and find the optimum strategy for each player. 
A. A: 1: 1/3, 2: 2/3 B: 1: 1/6, 2: 5/6 B. A: 1: 1/6, 2: 5/6 B: 1: 1/3, 2: 2/3 C. A: 1: 1/2, 2: 1/2 B: 1: 1/3, 2: 2/3 D. A: 1: 1/3, 2: 2/3 B: 1: 2/3, 2: 1/3