Mathematics, 15.07.2020 06:01 elliecruzriver
A retail store estimates that weekly sales s and weekly advvertising costs x (both in $) are related by 
. The current weekly advertising costs are $2,000, and these costs are increasing at a rate of $400 per week. Find the current rate of change of sales (in $).
Answers: 3
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A retail store estimates that weekly sales s and weekly advvertising costs x (both in $) are related...
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