Simplify by combining like terms.23.1x - 6.2 - 11.6x + 12.9
A. 12.5x + 6.7
B. 11.5x + 7.7
C. 18.2x
D. 11.5x + 6.7
Answer: D
Mathematics
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Solve the problem.From a point on a straight road, John and Fred ride bicycles in opposite directions. John rides 7 miles per hour and Fred rides 5 miles per hour. In how many hours will they be 60 miles apart?
A. 6 hours B. 5 hours C. 4 hours D. Not enough information
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Represent the radical as a radical with a smaller root index. Assume any variables represent nonnegative values.
A. 
B. 
C. 
D. 
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Graph the function 
.
A. 
B. 
C. 
D. 
E. 
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