Solve the problem.From a point on a straight road, John and Fred ride bicycles in opposite directions. John rides 8 miles per hour and Fred rides 7 miles per hour. In how many hours will they be 75 miles apart?
A. 6 hr
B. 5 hr
C. 4 hr
D. Not enough information
Answer: B
Mathematics
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Round off the approximate number as indicated.6022 3 significant digits
A. 6030 B. 6022 C. 6000 D. 6020
Mathematics
Perform the operation. Write the answer as a fraction in lowest terms.
- 
A. 
B. 
C. 
D. 
Mathematics
Solve the equation.-6x = 36
A. x = 1 B. x = -6 C. x = -42 D. x = 42
Mathematics
Solve the problem.The sum of a student's three scores is 221. If the first is 20 points more than the second, and the sum of the first two is 26 more than twice the third, what was the first score?
A. 68 B. 45 C. 65 D. 88
Mathematics