Part $1$ of $3$

HW Score: $0\%,0$ of $16$ points

Points: $0$ of $3$

Yourpwe $$3,505$ on your credit card which has a $15\mathrm{.}4\%$ APR.

$($a$)$ How much interest do you get charged this month on your balance of $$3,505?$

$($b$)$ Next month, you make a payment of $$950.$ What is your new balance?