Solve.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 13.8 gallons of water. Find the amount of water used in a shower lasting 8 minutes.
A. 4.8 gallons
B. 5.4 gallons
C. 4.2 gallons
D. 184 gallons
Answer: A
Mathematics
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7
A. 
B. 
C. 
D. 
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The Richter scale converts seismographic readings into numbers for measuring the magnitude of an earthquake according to this function M(x) = log 
, where x0 = 10-3.Find the magnitude (to one decimal place) of an earthquake whose seismographic reading is 2000 millimeters at a distance of 100 kilometers from its epicenter. Round the answer to the nearest tenth.
A. 5.9 B. 7.3 C. 6.3 D. 6.4
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Solve the problem.Find the coordinates of (0, 2) after it is moved 
units to the right.
A. 
B. 
C. 
D. 
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