For the cash flows shown, determine the incremental cash flow between machines B and A (a) in year 0, (b) in year 3, and (c) in year 6.

Machine	A	B
First Cost, $	-17,000	25,000
AOC, $ per Year	-1,800	400
Salvage Value, $	3,000	6,000
Life, Years	3	6

a) The incremental cash flow between machines B and A in year 0 is $ .

b) The incremental cash flow between machines B and A in year 3 is $ .

c) The incremental cash flow between machines B and A in year 6 is $ .