Mai's penny bank can hold 498 pennies without being full.
91038482949394738393858 thank you
Letting

, we get

and

, so we can parameterize the intersection by

where

.
Image attached.
5000(1+.07)^2
5000(1.07)^2
5000(1.14)
5,700
Your final answer should be 5,700$. If you wanna double check you would use the equation fv=bv(1+r/m)^mt