Solve the system of linear equations and check any solution algebraically.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: E
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Use rational equations to solve the problems.Jeff takes 5 hr longer to build a fence than it takes Bill. When they work together, it takes them 6 hours. How long would it take Bill to do the job alone?
A. 9 hours B. 11 hours C. 10 hours D. 12 hours
Provide an appropriate response.Andrea scored 
on her midterm exam. Her percent score on the exam was 0.71%.
A. True B. False
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 20,000 feet? Round your answer to the nearest tenth mile, if necessary.
A. 12,200 mi B. 1220 mi C. 172.5 mi D. 156.2 mi
Divide. Leave the answer in factored form when appropriate.
÷ 
A. 
B. 
C. 
D. 