Solve the problem.A contractor is considering a sale that promises a profit of $27,000 with a probability of .7 or a loss (due to bad weather, strikes, and such) of $7000 with a probability of .3. What is the expected profit?
A. $20,000
B. $18,900
C. $23,800
D. $16,800
Answer: D
Mathematics
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and 
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A. 2500? B. 1250? C. 1875? D. 625?
Mathematics
Translate to a proportion and solve. When necessary, round to the nearest hundredth.54 is 120% of what?
A. 450 B. 14,400 C. 144 D. 45
Mathematics
Evaluate the expression.2164/3
A. 279,936 B. 46,656 C. 7776 D. 1296
Mathematics
Use a commutative property to complete the statement.-18 ? x =
A. x ? (-18) B. 18 - x C. 18 ? x D. x - (18)
Mathematics