Complete answer please.

1.) A sum f $400,000 invested today by a manufacturing firm may give a series of cash inflows in the future:

If opportunity cost of capital is 8% per year, should we accept or reject the project (Calculate NPV)

2.) The cost of a project is $1,000, and the expected yearly incremental cash flows for 5 years are:

Compute for IRR, if the opportunity cost of capital is 12%; should we accept the project?

Year 1: $70,000 Year 2: $120,000 Year 3: $140,000 Year 4: $140,000 Year 5: $40,000 Year 1: $200 Year 2: $300 Year 3: $300 Year 4. $400 Year 5: $500