Add or subtract as indicated. Express the answer as a single polynomial in standard form.(9x6 + 6x5 - 2x) + (6x6 + 7x5 - 8x)
A. 18x12
B. 15x6 + 13x5 - 10x
C. 4x6 + 16x5 - 2x
D. 15x + 13x6 - 10x5
Answer: B
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Solve.7x + 10 = 52
A. 2 B. 6 C. 39 D. 35
Find the area of the polygon.Square
A. 2
ft2
B. 3 ft2
C. 6 ft2
D. 1
ft2
Solve the problem.A company has three products that fluctuate in favorability. The payoff matrix for the expected profit in tens of thousands of dollars is given below. What are the percentages of each product that the company should make that would maximize the expected value of the profit? Round to the nearest tenth of a percent, if necessary. 
A. Product #1: 0%, Product #2: 100%, Product #3: 0% B. Product #1: 100%, Product #2: 0%, Product #3: 0% C. Product #1: 38.5%, Product #2: 61.5%, Product #3: 0% D. Product #1: 30.8%, Product #2: 69.2%, Product #3: 0%
Solve the problem.Suppose that you are to cut a piece of ribbon for a wreath that is 120 inches long into two pieces so that one piece is 4 times as long as the other. How long is each piece of ribbon?
A. 30 in., 120 in. B. 30 in., 72 in. C. 24 in., 96 in. D. 24 in., 120 in.