1. Find all the open intervals of increase and decrease of t…

1. Find all the open intervals of increase and decrease of the function . A   Open interval of increase:  open interval of decrease:  B   Open interval of increase:  open interval of decrease:  C   Open interval of increase:  open interval of decrease:  D   Open interval of increase:  open interval of decrease:  E   Open interval of increase: 

15. A new fast-food firm predicts that the number of franchi…

15. A new fast-food firm predicts that the number of franchises for its products will grow at the rate , where t is the number of years. If there is one franchise  at present , how many franchises are predicted for  years from now? A   B   C   D   E