Given a host IP address $172\mathrm{.}16\mathrm{.}77\mathrm{.}120$ and a subnet mask $255\mathrm{.}255\mathrm{.}240\mathrm{.}0.$ Find $($Show your work$)$:

$1.$ Number of subnet bits

$2.$ Number of subnets created

$3.$ Number of host bits per subnet$\_$

$4.$ Number of hosts per subnet

$5.$ Network Address of this Subnet

$6.$ IPv$4$ address of first host on this subnet

$7.$ IPv$4$ address of last host on this subnet

$8.$ IPv$4$ broadcast address on this subnet