Please point me in the right direction with this. I have no clue how to separate the cashflow diagram. This is for engineering economic analysis.

Problem 2. Below is an example cashflow diagram. Nominal interest is 6% compounded quarterly $10000 1000 $1000 $800 $600 $400 Yr 1 Yr2 Yr3 Yr4 3000 $5000 Part a) Breakdown the cashflow diagram into each type of calculation for a Present Worth Analysis (e P/F, P/A, P/G) Part b) Then, for each new cashflow diagram express the calculation in the form of P-A*P/A, i%, n] An example part of the answer could be $1000 Yr 1 Yr2 Yr3 Yr4 P, 1000 * , 1.5%, 6 Pg F2 * , 1.5%, 3 Or P-| 1000 * , 1.5%. 6| | * , 1.5%, 3