Solve.Two cars leave a parking lot and travel in opposite directions. One travels at 10 miles per hour and the other travels at 7 miles per hour. In how many hours will the two cars be 68 miles apart?
A. 12 hr.
B. 8 hr.
C. 9 hr.
D. 4 hr.
Answer: D
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Sketch the subset on the real number line, and state whether the inequality is bounded or unbounded. ? x ? -2 ?
A. 
The interval is unbounded.
B.
The interval is unbounded.
C.
The interval is bounded.
D.
The interval is bounded.
E.
The interval is unbounded.
Find the derivative of y with respect to x, t, or ?, as appropriate.y = ln 
A. ln 
B. 
C. 
D. 
Solve the problem by estimating.The following table shows the number of Mega-Box stores in selected states. Estimate the total number of Mega-Box stores in these states by rounding each value to the nearest ten. 
A. 221 stores B. 220 stores C. 200 stores D. 230 stores
Maximize
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subject to
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Round all answers to two decimal places.
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A. 
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B. 
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C. 
, 
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, 
, 
D. 
, 
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E. 
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