Please help complete these questions

I need helping completing these 6 questions. Please help! Charles and Charlotte are both 37 years old and have two children. Charles makes $70,000 and Charlotte makes $40,000 per year They have gathered the following information: Their expected portfolio rate of return is 8.5% They want to retire at 67 with 80% of their pre-retirement income. They expect to live to age 95. -They expect that Social Security will provide $24,000 to him and $20,000 to her at normal retirement of 67 - They want to send their children to a state university. The current education inflation rate is 6%. The current cost per year is $20,000, the children are expected to attend school for 5 years. the children are ages 8 and 6 and will start college at age 18 - They have $150,000 in investment assets and cash and cash equivalents They have no interest in moving or refinancing their home. -At retirement, they want to buy a specialized RV to travel. The current cost is $250,000 and is expected to increase with general inflation 3%. -They are currently saving $11,000 per year for retirement (Charles: $7,000, Charlotte: $4,000) and have employer matches of $3,300 total (3% maximum match) for a total of S 14,300 annually. The general inflation rate is expected to be 3%. Charles and Charlotte would like to know: 5. If they were to retire today, what are their annual needs during retirement, considering that they plan to live on 80% of their current income and expect to receive Social Security payments? 6. Assuming a 3% inflation, what is their annual needs when they retire? 7, Assuming a 3% inflation rate and an 8.5% investment rate of return, what amount do they need to have accumulated at age 67 to meet their annual needs as identified in #6? 8. What is the present value today, at age 37, of the retirement nest egg that they will need at age 67? Use the investment rate of return of 8.5%; ignore inflation. 9. What is the sum of all three long-term goals (RV, education, retirement) in present value terms? 10. The couple currently has $150,000 in investment assets and cash and cash equivalents. Is this amount sufficient to accomplish their long- term plans