It is projected that someday human kind will be able to move to Mars. If that will happen successfully, then in the future First Credit Union of Mars will be created. Assuming that the FCUM will offer a savings account with 10% annual interest and a $15 monthly maintenance fee. Please help us find the following: a) Equation that models Martian's savings account balance b) Assuming that an account is opened with $1000, how much money will it contain after 7 years? c) If citizens of the Moon enjoy the same interest rate but have no maintenance fees on their savings accounts. How much money will a Lunarian have in his/her account after 7 years? (assuming same initial deposit of $1000)