The LaTique Outlet store estimate that their weekly sales

Last updated: 7/8/2022

The LaTique Outlet store estimate that their weekly sales S and weekly advertising cos t x is modeled by the equation S(x) = 60000 - 40000e-0.0005x The present weekly advertising cost of $2,000, is now increa sin g at a rate of $300 per week. What is the current rate of change of sales in dollars per week?