Consider the following projects, $x$ and $Y$ where the firm can only choose one. Project $x$ costs $$1300$ and has cash flows of $$477,$$$111,$$$452,$$$268,$$$526$ in each of the next $5$ years. Project $Y$ also costs $$1300,$ and generates cash flows of $$496,$$$293,$$$468,$ $$378$ for the next $4$ years, respectively. WACC$=8\mathrm{.}75\%.$

A$)$ Calculate the projects' NPVs$,$ IRRs, payback periods.