Projects GG and HH from Gamma Industries have the following projected cash flows:

End of Year	Project GG	Project HH
0	-7000	-7000
1	3000	2000
2	2000	2000
3	2000	4000
4	2000	5000

Requirements:

Determine the IRR for each project.

Calculate the NPV at discount rates of 7%, 14%, and 21%.