Please add the step please help me

Question 1

a) Ahmad is considering an investment where he will receive a series of 10 annual cash flows of RM1,000 each. Assuming his required return is 8% per annum, what is the maximum amount he is willing to pay for this investment if the first cash flow occurs:

i) today

ii) At the end of year 4

b)

Lucy is considering an insurance plan where she will pay 10 annual premium of RM1,000 each, and the insurance will mature in 15 years. The insurance company will pay an interest rate of 8% per annum. How much will she receive at the end of year 15 if the first payment occurs: