Sandra bought 3 pounds of sweet potatoes for $4.89. What is the cost per pound of the sweet potatoes?
2 answers:
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Answer:
Step-by-step explanation:
If the Number of Sales of x units, N(x) is defined by the function:
Next, we text the critical points and the end points of the interval to see where the derivative is increasing.
Thus, the rate of change of sales is increasing in the interval
on 10≤x≤40.