Find the probability.A bag contains 5 red marbles, 6 blue marbles, and 2 green marbles. What is the probability of choosing a blue marble when one marble is drawn?
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Factor out the greatest common factor.9z - 45
A. 5(z - 9) B. 9(z - 45) C. 9(z + 5) D. 9(z - 5)
Mathematics
Combine. Simplify the answer.
+ 
+ 
A. 
B. 2
C. 1
D. 
Mathematics
Match the given equation with one of the graphs.
- 
= 1
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A formula for calculating the distance, d, one can see from an airplane to the horizon on a clear day is 
where x is the altitude of the plane in feet and d is given in miles. How far can one see in a plane flying at 23,000 feet? Round your answer to the nearest tenth mile, if necessary.
A. 167.5 mi B. 1403 mi C. 14,030 mi D. 185.0 mi
Mathematics