The sales decay for a product is given by S = 80,000e 0.1x, where S is the weekly sales (in dollars) and x is the number of weeks that have passed since the end of an advertising campaign. (a) What will sales be 7 weeks after the end of the campaign? (Round your answer to the nearest cent.) (b) How many weeks will pass before sales drop below $17,000? (Round your answer down to the nearest week.) 15 weeks Submit Answer