please help with answering all questions ! need help with letters a-c and also exactly how you got those answers

Part I: RETIREMENT* 1 . Leah is looking forward to retirement and hopes to be able to retire ( stop working ) when she is 65 . Her wage replacement ratio is estimated to be 80% . Given Leah's health and family history , a conservative estimate for her life expectancy is 90 years . Leah's Social Security benefit statement indicates that her Social Security retirement benefit ( in today's dollars ) is $18, 000 per year . a . What amount of retirement funds will she need at retirement ( draw timelines to make sure you are setting BGN to the correct setting ( BGN or END ) ) in order ;`` singles to maintain her standard of living until age 90 ? Assume Leah can earn 5% on how is her investments for the years during retirement , and that the rate of inflation over the rest of her life averages 3 % per year . b.` Ob Will Leah's current 401 ( K ) savings goal of 8 % of her current salary per year be {Until`` enough to meet this goal ? Assume that Leah continues to work for a firm that matches her 401 ( K ) contribution $0.50 on the $1. 00 , and that that can earn 6% return on her 401 ( K ) account . If Leah's current savings goal is not enough , how much more does she need to save annually ?" C . If Leah would need to save more than what is going into her 401 ( K ) plan , what other retirement vehicles would you recommend ( Traditional IRA , ROTHIRA , taxable accounts) ? Justify your recommendation