The projected cash flows from a project costing $$180,000$ today are as follows:

years $1-3$ $$0$

years $4-9$ $$40,000$ per year

year $,10,$$$70,000$ per year

If the required rate of return is $9$ percent,

a$.$ Find the MIRR.

b$.$ Given your answer $"$a$",$ should you accept$/$reject the project?