$($IRR calculation$)$ Determine the IRR on the following projects:

a$.$ An initial outlay of $$11,000$ resulting in a single free cash flow of $$16,513$ after $9$ years

b$.$ An initial outlay of $$11,000$ resulting in a single free cash flow of $$49,907$ after $12$ years

c$.$ An initial outlay of $$11,000$ resulting in a single free cash flow of $$111,598$ after $25$ years

d$.$ An initial outlay of $$11,000$ resulting in a single free cash flow of $$13,784$ after $2$ years

a$.$ What is the IRR of a project with an initial outlay of $$11,000$ resulting in a single free cash flow of $$16,513$ after $9$ years?

$\%($Round to two decimal places.$)$