SUBNET ADDRESSING

Consider the router and the three attached subnets below $($A$,$ B$,$ and C$).$ The number of hosts is also shown below. The subnets share the $23$ high$-$

order bits of the address space: $142\mathrm{.}212.\frac{72\mathrm{.}0}{23}$

Assign subnet addresses to each of the subnets $($A$,$ B$,$ and C$)$ so that the amount of address space assigned is minimal, and at the same time leaving

the largest possible contiguous address space available for assignment if a new subnet were to be added. Then answer the questions below.

Here are the questions:

$1.$ Is the address space public or private?

$2.$ How many hosts can there be in this address space?

$3.$ What is the subnet address of subnet A$?($CIDR notation$)$

$4.$ What is the broadcast address of subnet A$?$

$5.$ What is the starting address of subnet A$?$

$6.$ What is the ending address of subnet A$?$

$7.$ What is the subnet address of subnet B$?($CIDR notation$)$

$8.$ What is the broadcast address of subnet B$?$

$9.$ What is the starting address of subnet B$?$

$10.$ What is the ending address of subnet B$?$

$11.$ What is the subnet address of subnet C$?($CIDR notation$)$

$12.$ What is the broadcast address of subnet C$?$

$13.$ What is the starting address of subnet C$?$

$14.$ What is the ending address of subnet C$?$

Can I please have the solutions with explanations. Also how do I calcuate the subnet?