Complete the following table for each of the four separate scenarios a through d.

	Net cash flows from operating activities	Net cash flows from investing activities	Net cash flows from financing activities	Cash at the beginning of the period	Cash at the end of the period
a.	$ 30,000	$ (24,000)	$ (2,700)	$3,000	?
b.	150,000	(120,000)	(33,000)	?	27,000
c.	27,000	(30,000)	?	4,800	6,600
d.	?	3,000	(600)	3,600	3,900