$192\mathrm{.}168\mathrm{.}100\mathrm{.}25/30$:

The subnet is $192\mathrm{.}168\mathrm{.}100\mathrm{.}24/30,$ allowing for two host addresses.

The valid host range is $192\mathrm{.}168\mathrm{.}100\mathrm{.}25$ to $192\mathrm{.}168\mathrm{.}100\mathrm{.}26.$

$192\mathrm{.}168\mathrm{.}100\mathrm{.}37/28$:

The subnet is $192\mathrm{.}168\mathrm{.}100\mathrm{.}32/28,$ providing $16$ host addresses.

The valid host range is $192\mathrm{.}168\mathrm{.}100\mathrm{.}33$ to $192\mathrm{.}168\mathrm{.}100\mathrm{.}46.$

$192\mathrm{.}168\mathrm{.}100\mathrm{.}66/27$:

The subnet is $192\mathrm{.}168\mathrm{.}100\mathrm{.}64/27,$ accommodating $32$ host addresses.

The valid host range is $192\mathrm{.}168\mathrm{.}100\mathrm{.}65$ to $192\mathrm{.}168\mathrm{.}100\mathrm{.}94.$

$192\mathrm{.}168\mathrm{.}100\mathrm{.}17/29$:

The subnet is $192\mathrm{.}168\mathrm{.}100\mathrm{.}16/29,$ allowing for six host addresses.

The valid host range is $192\mathrm{.}168\mathrm{.}100\mathrm{.}17$ to $192\mathrm{.}168\mathrm{.}100\mathrm{.}22.$

$192\mathrm{.}168\mathrm{.}100\mathrm{.}99/26$:

The subnet is $192\mathrm{.}168\mathrm{.}100\mathrm{.}65/26,$ providing $64$ host addresses.

The valid host range is $192\mathrm{.}168\mathrm{.}100\mathrm{.}65$ to $192\mathrm{.}168\mathrm{.}100\mathrm{.}126.$

$192\mathrm{.}168\mathrm{.}100\mathrm{.}99/25$:

The subnet is $192\mathrm{.}168\mathrm{.}100\mathrm{.}0/25,$ accommodating $128$ host addresses.

The valid host range is $192\mathrm{.}168\mathrm{.}100\mathrm{.}1$ to $192\mathrm{.}168\mathrm{.}100\mathrm{.}126.$

Class B Network with $29$ Subnets:

To create $29$ subnets, a $/19$ subnet mask is needed.

$192\mathrm{.}168\mathrm{.}192\mathrm{.}10/29$:

The broadcast address is $192\mathrm{.}168\mathrm{.}192\mathrm{.}15$ for the $/29$ subnet.

Class C$/29$ Mask Hosts:

A Class C $/29$ subnet provides $8$ available hosts.

Subnet for Host ID $10\mathrm{.}16\mathrm{.}3\mathrm{.}65/23$:

The host ID $10\mathrm{.}16\mathrm{.}3\mathrm{.}65$ falls within the subnet $10\mathrm{.}16\mathrm{.}2\mathrm{.}0/23.$