Question: . Repeat Problem 27 for s = 50,000 - 20,000e-0.0004x Problem 27 A retail store estimates that weekly sales s and weekly advertising costs x

. Repeat Problem 27 for
s = 50,000 - 20,000e-0.0004x
Problem 27
A retail store estimates that weekly sales s and weekly advertising costs x (both in dollars) are related by
5 = 60,000 - 40,000e-0.0005x
The current weekly advertising costs are $2,000, and these costs are increasing at the rate of $300 per week. Find the current rate of change of sales.

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