$25.$ Barbara is paid on a bi$-$weekly basis and works in New Brunswick. She is paid $$25$ per hour. In this pay period she worked $75$ hours at straight time and also worked $15$ hours overtime at time and a half. Barbara$$s year$-$to$-$date Canada Pension Plan contributions are $$3,330.$ Her year$-$to$-$date employment insurance premiums are $$715.$

$1.$ Calculate Barbara$$s gross earnings.

$2.$ Calculate Barbara$$s Canada Pension Plan $($CPP$)$ contributions.

$3.$ Calculate Barbara$$s Employment Insurance $($EI$)$ premiums