Determine the IRR on the following projects:

a.An initial outlay of $12,000 resulting in a free cash flow of $1,911 at the end of each year for the next 10 years

b.An initial outlay of $12,000 resulting in a free cash flow of $2,094 at the end of each year for the next 18 years

c.An initial outlay of $12,000 resulting in a free cash flow of $1,167 at the end of each year for the next 13 years

d.An initial outlay of $12,000 resulting in a free cash flow of $2,976 at the end of each year for the next 6 years