8 states start with the letter N. Because you’re looking for the amount of states not starting with the letter N, we’ll subtract 8 from 50. Then you’ll put that over the total amount of states. So you should end up with 42/50 which will simplify to 21/25. Hope this helped!
First, replace the numerator with the parentheses. Second, multiply both sides by 3. Third, multiply 2 × 3 to get 6. Fourth, take away 15 from each side. Fifth, simplify -6 - 15 to get -21.