A national fast food company has just analyzed the effect of the latest sales promotion. It has determined that the sales decay for its milkshakes is given by S = 415, 000e ^- 0.37, where S is the weekly sales and x is the
number of weeks that have passes since the end of the sales promotion. Round each answer to 2 decimal
places.
a) What will the sales 4 weeks after the end of the promotion? $
b) How many weeks after the end of the promotion will sales drop below 15,000, if no new campaign is
started?
weeks