19. (6 pts) The sales decay for a product is given by S = 40,000e-0.2x Where x is the number of weeks that have passed since the end of an

Number 19 please and can you show all work thank you so much

19. (6 pts) The sales decay for a product is given byS = 40,000e-0.2xWhere x is the number of weeks that have passed since the end of an advertising campaign.a) What will sales be 5 weeks after the end of the campaign? (round to nearest whole number).b) How many weeks will pass before sales drop below 10,000? (round to nearest week)