Add or subtract. Assume that variables represent nonnegative values.
- 2
- 10
A. -162
B. -74
C. 74
D. 98
Answer: B
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Solve the problem.Four people are injured in an auto accident, and each requires 
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Find the requested probability.A box contains the following mixture of colored marbles: 5 black, 3 red, 3 yellow, and 1 green. What is the probability of drawing three marbles of the following colors, in order, if they are drawn without replacement: black, green, black?
A. 
B. 
C. 
D. 
Simplify. Assume that all variables are nonzero.
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