In this question,part 2 asks for yearly depreciation, and since equations have been provided which are supposed to tell how much the value decreases can't those be used to tell the yearly depreciation.
For eg-
Value of A decreases as per equation 5x+12.5(Va) - 62.5 = 0
So if we wanted to know the yearly depreciation,can't we put x as 1 and Va as 5,000(Value of A which we found in the previous part)
Looking for clarification.
Thank you