A$.$ The equivalent value of two cash flows at two different points in time is sometimes referred to as the time value of money.

Finding the present value $(PV)$ and compounding are the same.

$.$ If you want to compare or combine cash flows that occur at different points in time, you first need to convert the cash flows into the same

units or move them to the same point in time.

A dollar today and a dollar in one year are not equivalent.