Given the following IP address $128\mathrm{.}15\mathrm{.}6\mathrm{.}6/19$ find :

a$)$ the class of the IP

b$)$ the subnet mask

c$)$ CIDR version of subnet mask

d$)$ number of subnets

e$)$ number of bits borrowed from the host

f$)$ number of hosts for each subnet

g$)$ addresses for each subnet $($network$,$ broadcast, and host addresses$)$