Solve the problem.An airplane flies 430 miles with the wind and 350 against the wind in the same length of time. If the speed of the wind is 30, what is the speed of the airplane in still air?
A. 297.5 mph
B. 131.25 mph
C. 292.5 mph
D. 282.5 mph
Answer: C
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The bowling scores for a group are given.230, 214, 210, 198, 197, 187, 168, 167, 167, 163, 162, 160, 159, 158, 143, 141, 140, 138, 137, 137. Find the quartiles for the set of bowling scores.
A. 192, 167, 142 B. 230, 160, 137 C. 192, 162.5, 142 D. 230, 168.8, 137
If a firm currently operates at less than full capacity, it must increase existing plant and equipment only if:
A. its total variable operating costs increase with an increase in sales. B. the unused capacity of its existing assets is not sufficient to support a forecasted increase in sales. C. the internally generated funds exceed the amount required to support the forecasted increase in sales. D. the addition of fixed assets in large, discrete units results in economies of scale that increase operating costs. E. fixed operating costs tend to decrease with higher sales.
Perform the indicated operation.(2.9b - 10) - (9.4b - 7)
A. 12.3b - 17 B. -65b - 3 C. 6.5b + 3 D. -6.5b - 3
Combine. Simplify the answer.
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A. 
B. 
C. 
D. 