(IRR calculation) Determine to the nearest percent the IRR on the following projects: a. An initial outlay of $12,000 resulting in a free cash flow of $2,000 at the end of year 1, $6, 500 at the end of year 2, and $9, 500 at the end of year 3 b. An initial outlay of 512,000 resulting in a free cash flow of $9, 500 at the end of year 1, $6, 500 at the end of year 2, and $2,000 at the end of year 3 c. An initial outlay of $12,000 resulting in a free cash flow of $2,000 at the end of years 1 through 5 and $6, 500 at the end of year 6