(IRR calculation) Determine the IRR on the following projects: a. An initial outlay of $13,000 resulting in a single free cash flow of $16,941 after 7 years b. An initial outlay of $13,000 resulting in a single free cash flow of $50,136 after 13 years c. An initial outlay of $13,000 resulting in a single free cash flow of $106.215 after 24 years d. An initial outlay of $13,000 resulting in a single free cash flow of $14,061 after 4 years