Solve the problem.How many different three-digit numbers can be written using digits from the set {3, 4, 5, 6, 7} without any repeating digits?
A. 20
B. 120
C. 60
D. 10
Answer: C
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Write a voter profile for the voting situation.Eight voters are asked to rank 3 brands of automobiles: A, B, and C. The eight voters turn in the following ballots showing their preferences in order:
Write a voter profile for these ballots.
A. 
B. 
C. 
D. 
Solve.David recently switched to a long distance phone company which charges a monthly fee of $5.45 plus $0.06 per minute. A linear function that expresses the monthly bill B as a function of minutes used m is 
What are the independent and dependent variables?
A. The independent variable is the customer, and the dependent variable is B. B. The independent variable is B, and the dependent variable is m. C. The independent variable is 5.45, and the dependent variable is 0.06. D. The independent variable is m, and the dependent variable is B.
Simplify the expression. Assume that all variables represent nonnegative real numbers. y
+ 
- 4y
A. (3x - y)2
B. (3x - y)(3x + y)
C. (2x - y)(2x + y)
D. (2x - y)2
Approximate the square root. Round to the nearest tenth, if needed.
A. 15.5 B. 15.2 C. 15.4 D. 15.3