he sales decay for a product is given by S 20 000e 0 3x where S is the monthly sales and x is the number of months that have passed since the end of a promotional campaign a What will be the sales 6 months after the end of the campaign Round your answer to two decimal places b How many months after the end of the campaign will sales drop below 1 000 if no new campaign is initiated Round up to the nearest whole number months