I need a little help here, im struggling rnn

In exponential growth functions, the base of the exponent must be greater than 1,how would the function change if the base of the exponent were 1? how would the fiction change if the base of the exponent were between 0and 1

Abank gives 6.5% interest per year. what is the growth factor b in this situation?

What could explain what happened when the time was equal to 120 minutes