posted by Evan .
S=7389 units when t=0
find the function that describes the number of daily sales t days after the end of the campaign
Really stuck can someone help me to just find the function so I can head in the right track for the rest of the question
let f(t)= e^kt + C
then f'(t)= k e^kt
so here you are given S', integrate to get S. Don't forget the constant of integration.