need help with 3 and 4! i will upvote! thanks

3) If you were to put the entire $750,000 into AAA corporate bonds at the historic average yield, how much could you earn in annual interest income? (10 pts) 4) If you could collect $40,000 per year in Social Security Retirement income (taking into account inflation of 3.5% per year: 24,0001.035515 ) and $30,000 per year from combined interest, dividends and withdrawals from your company 401K savings, how much in total will your combined income be (including the interest income on the $750,000) ? (10 pts) Annual 5avings required to fund szsonno dit ined dur for 15 vears