$(20$ points$)$ Consider a scenario where a $Wi-Fi$ router is transmitting a signal at a frequency of $2\mathrm{.}4$ GHz and the distance between the router and a receiving device is $100$ meters. Given that $P_{Tx}=0\mathrm{.}1$ W$,$ calculate

$($a$)(5$ points$)$ the Free Space Path Loss $($FSPL$)$ in ratio

$($b$)(5$ points$)$ the Free Space Path Loss $($FSPL$)$ in dB

$($c$)(5$ points$)$ the amount of received power in watts

$($d$)(5$ points$)$ the amount of received power in dB