FJ LLC is considering a project requiring an initial investment of $$75$ million and which expects $$7$ million in annual free cash flows starting from next year till forever. The firm continuously rebalances its cap structure as well it maintains a target debt$-$to$-$equity $($D$/$E$)$ ratio of $1.$ FJ LLC corporate tax rate is $30\%.$ Its pre$-$tax cost of debt is $4\mathrm{.}5\%$ and its cost of equity is $11\%.$ What is the payback period of this? WAAC? Use Capital budgeting analysis to determine if FJ LLC should do the project?