Solve the problem.From a point on a river, two boats are driven in opposite directions, one at 6 miles per hour and the other at 7 miles per hour. In how many hours will they be 26 miles apart?
A. 3 hr
B. 1 hr
C. 2 hr
D. 4 hr
Answer: C
Mathematics
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Find the missing value and write a conclusion. If necessary, round the percentage to the nearest tenth.What percent of 50 is 20?
A. 192% of 50 is 20. B. 96% of 50 is 20. C. 40% of 50 is 20. D. 20% of 50 is 20.
Mathematics
Find the probability.One digit from the number 3,474,554 is written on each of seven cards. What is the probability of drawing a card that shows 5?
A. 
B. 
C. 1
D. 
Mathematics
Find the inverse of the function.f(x) = (x + 2)3
A. f-1(x) = 
+ 2
B. f-1(x) = 
- 2
C. f-1(x) = 
- 8
D. f-1(x) = 
Mathematics
Rationalize the denominator and simplify. Assume all variables represent nonnegative real numbers.
A. 2
B. 1
C. 
D. 2
Mathematics