Solve the problem.The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 23 minutes requires 4.6 gallons of water. Find the amount of water used in a shower lasting 4 minutes.
A. 26.45 gal
B. 0.8 gal
C. 1.15 gal
D. 20 gal
Answer: B
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Solve the problems.A cheetah can run at a speed of approximately 69 miles per hour. Calculate this speed in feet per minute.
A. 6,072 ft./min. B. 2,070 ft./min. C. 6,042 ft./min. D. 6,097 ft./min.
Graph the exponential function and state the domain and range.y = 
x + 3 
A. Domain: (0, ?), Range: (3, ?)
B. Domain: (-?, ?), Range: (3, ?)
C. Domain: (-?, 0), Range: (-?, 3)
D. Domain: (-?, ?), Range: (-?, 3)
Solve the problem.The accompanying graph shows the average number of degrees above/below normal in December from 2000 - 2009 where x = 0 represents 2000. 
Estimate the number of degrees below zero in 2008. Round to the nearest tenth.
A. 6 degrees below normal B. 0.8 degrees below normal C. 48 degrees below normal D. -1190 degrees below normal
Graph the function.f(x) = 
A. 
B. 
C. 
D. 