The DeWitt Company has found that the rate of change of its average cost of producing a product is 
, where x is the number of units and cost is in dollars. The average cost of producing 20 units is $40.00. Find the average cost of producing 140 units of the product. Round to the nearest dollar.
?
A. $46
B. $48
C. $51
D. $53
E. $58
Answer: E
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Complete.688 oz = 
lb
A. 43 B. 172 C. 44 D. 68
Provide an appropriate response.Perform the operation and simplify your answer: 
+ 
What will be an ideal response?
Solve the problem.The following graph shows a weight and height chart. The weight w is listed in pounds and the height h in inches. The shaded area is a recommended region. 
Weight (pounds)What does this chart indicate about an individual who weighs 140 pounds and is 73 inches tall?
A. This individual weighs less than recommended for his or her height. B. There is not enough information given. C. This individual's weight falls within the recommended region for his or her height. D. This individual weighs more than recommended for his or her height.
Graph the elements of the set on a number line.{-5, -3, -1, 1}
A. 
B. 
C. 
D. 