(IRR calculation) Determine the IRR on the following projects: a. An initial outlay of $12,000 resulting in a single free cash flow of $17,123 after 8 years b. An initial outlay of $12,000 resulting in a single free cash flow of $50,395 after 14 years c. An initial outlay of $12,000 resulting in a single free cash flow of $107,058 after 23 years d. An initial outlay of $12,000 resulting in a single free cash flow of $13,576 after 5 years