Solve.A $290 lamp is on sale at 10% off. How much will the coat cost?
A. $29.00
B. $2.90
C. $2871.00
D. $261.00
Answer: D
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What strategies would you not use to make the following game a fair game? To play: $4.00; Probability of Winning: 0.39; Winnings: $10.00. ?
A. ?Increase the probability of Winning (if possible) to 0.4. B. ?Increase the winning purse to $10.26 (number rounded to the nearest cent). C. ?Decrease the cost to play to $3.90. D. ?Decrease the probability to 0.29. E. ?Increase the winnings to $6, increase the probability of winning to .4, and increase the cost to play to $2.40.
Approximate the numbers and place the correct symbol (< or >) between them.
A. 
B. 
C. 
D. 
E. 
Solve the problem.A heat engine is a device that converts thermal energy into other forms. The thermal efficiency, e, of a heat engine is defined by 
where Qh is the heat absorbed in one cycle and Qc, the heat released into a reservoir in one cycle, is a constant. Find 
.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Simplify the given expression. Express answer with positive exponents.
9
A. 38/3x108y6 B. 324x108y6 C. 317/3x21y11/3 D. 324x12y6