Solve the problem.If one earthquake is 104.4 times as intense as another, what is the difference in the Richter scale readings of the two earthquakes?
A. 4.4
B. 14.4
C. 10.1
D. 5.6
Answer: A
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Use the quotient rule to simplify.
A. x2y
B. xy
C. xy2
D. xy2
Solve the problem.A one-way street passes under an overpass, which is in the form of the top half of an ellipse, as shown in the figure. Suppose that a truck 10 feet wide passes directly under the overpass. What is the maximum possible height of this truck to the nearest tenth of a foot? 
A. 9.6 ft B. 14.7 ft C. 7.4 ft D. 8.5 ft
Determine if the graph is symmetric with respect to x-axis, y-axis, and/or the origin.
A. x-axis B. Origin C. y-axis D. x-axis, origin
Solve the problem.An open box is to be constructed from a square sheet of plastic by removing a square of side 4 inches from each corner, and then turning up the sides. If the box must have a volume of 1600 cubic inches, find the length of one side of the open box.
A. 19 in. B. 20 in. C. 24 in. D. 28 in.