Please write it properly. and Show the formula.

3. A potential customer approaches you to advise him on his investment for retirement. He plans to open a unit trust account with RM50,000 using an auto-debit of RM1,000 per month. The unit trust account is expected to earn a dividend of 5% annually. In this case: a) How much money he could accumulate if he starts his investment at 25 -years old and plans to retire at 55-years-old? (6 marks) b) How long he could use his money after retirement if he withdraws RM2,000 per month after retires. (4 marks) c) Provide 2 (TWO) suggestions on other financial products (or investments) that would benefits his retirement life in the future