I'm lost on this problem. Can you show me how to get through it step by step?

with a one time deposit of RA 33. You want to retire at age 65, you begin your investment program at 25 $5,000 in a traditional IRA. on this investment you can earn 11% in the Vanguard 2055 retirement fund. At age 35 you come into an inheritance of $15,500 of which vou decide to put into a Roth using a Fidelity index fund which you anticipate will yield 9.5% until 65 At 45 you remember taking Elliott's class and listening to Bryan Washburn and Mark Russell and you realize that you have $14,000 extra saved for retirement. To be super safe you invest t receive a 7% return. At 65 you want to retire at $120,000, gross a year for 30 years, (you need this much because you didn't factor in Inflatio you anticipate you can earn 4% on the payout or annuity, not perpetuity. (Part A) with all of this this sum in another Roth IRA which you will tion, and it is not too much info e how rmuch will you need to invest each year at 10%, beginning at 25 to 65, using a mutual, traditional IRA account to achieve your retirement goal of S120,0 00 gross for 30 years? (3 points), part A. (this must mean that you were still short of funds rt B) remember Bryan Washburn and Mark Russell from the other investments) The second part (Pa indicated we are looking for tax-free income at retirement, and thus, you are the 25% tax bracket at retirement, how much will you net each year in retirement, after taxes? (3 points), (Part B.) Part A (Traditional IRA 25 to 65,)....3 points. Part B that the traditional IRA portion of your total funds is taxable at 25%.)