Use that two sheets to answer the questions

Yuni is 27 years old and wishes to secure her future by saving $350 per week into an investment that pays 6.5% p.a. compounding weekly. She is looking forward to a career in Accounting and is hoping to work in the industry until she retires at age 55.

a)How much will Yunihave in retirement savings if he contributes the $350 at theendof each week?

Showformula,variables,calculationand aconcluding statementin your response.

b)How much will Yuni have in retirement savings if he contributes the $350 at thestartof each week?

Showformula,variables,calculationand aconcluding statementin your response.

c)Explain why there is a difference between the two amounts determined in parts a) and b) above?

d)Calculate the effective interest rate for Yuni and explain what this number means.

e)Yuni wants to set up a college fund for her grandchild. She is aiming to be able to pass on $100 000 in 15 years' time. How much does Yuni need to set aside today into a college fund for his grandchild, assuming the fund earns 7.50% per annum?