Question

help me please

Answer 1

This is an example of exponential growth (it is can also be considered a first order differential equation). Have you studied financial math a little bit? Then it would probably help if I told you to think of it like Principle and interest compounded annually. If not you can model the situation like this:
\[Initial \times 1.07^t\]
Where t is amount of years passed. Note that this only works for annually compounded numbers....so if you have a similar question, you need to modify it.