Find the average.Scores on a math test: 71 51 71 91 51
A. 91
B. 66
C. 51
D. 67
Answer: D
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Sketch D and g(D) from the description of D and change of variables 
u = xy, v = 
where D is the rectangle 1 ? u ? 4, 
? v ? 2
?
A.
 ? |  |
B.
 ? |  |
C.
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D.
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A traveling salesman's territory consists of the 5 cities shown on the following mileage chart. The salesman must organize a round trip that starts and ends at Louisville (his hometown) and will pass through each of the other four cities exactly once.Mileage Chart
At an average cost of 25 cents per mile, the cheapest possible trip that starts at Louisville and passes through each of the other cities exactly once would cost
A. $551.00. B. $578.25. C. $606.50. D. $541.75. E. none of these
Calculate 
.A = 
A. 15 B. -3 C. 105 D. -105
Decompose into partial fractions.
A. 
- 
B. 
- 
C. 
+ 
D. 
- 