Name: Determine the equation that goes with the following. The amount of sales decline after the end of an advertising campaign according to the following data where x is the number of months after the campaign ends. Determine the equation in y = aex form. Based on the R value is the model a good fit. Round b to 3 decimal places. Months Sales O 75000 43517 15525 7485 3216 1751 804 How many months does it take for sales to drop below 500? (Round answer to nearest whole number)