How can you tell whether an exponential function models exponential growth or exponential decay?

Complete the explanation.

When the function is in the form () = , if the function models exponential growth, and if , the function models exponential decay.

Just tell me how to set up the equation.

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account

Ian is in training for a national hot dog eating contest on the 4th of july. on his first day of training, he eats 4 hot dogs. each day, he plans to eat 110% of the number of hot dogs he ate the previous day. write an explicit formula that could be used to find the number of hot dogs ian will eat on any particular day.