Solve.How long would it take to drive 200 kilometers if your average rate of speed was 40 kilometers per hour?
A. 5 hr
B. 24 hr
C. 80 hr
D. 6 hr
Answer: A
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Find an equation for the sphere with the given center and radius.Center (-1, 0, 0), radius = 1
A. x2 + y2 + z2 + 2x = 1 B. x2 + y2 + z2 - 2x = 1 C. x2 + y2 + z2 - 2x = 0 D. x2 + y2 + z2 + 2x = 0
Use Cramer's rule to solve the linear system. If D = 0, use another method to determine the solution set.2x + 2y + z = 152x - 3y - z = 43x + y + 4z = 28
A. {(3, 1, 5)} B. Cramer's rule does not apply since D = 0; ? C. {(5, 1, 3)} D. {(5, 3, 1)}
Given the perimeter and either the length or width of a rectangle, find the unknown measurement by using the appropriate formula.The length of a rectangular table is 14 feet and the perimeter is 42 feet.
A. 9 feet B. 14 feet C. 7 feet D. 6 feet
The following double-bar graph illustrates the revenue for a company for the four quarters of the year for two different years. Use the graph to answer the question. 
What was the difference in revenue between the third quarter of 2009 and the third quarter of 2010?
A. $5 million B. $15 million C. $1 million D. $3 million