Answer:6=C 7=C
Step-by-step explanation:
First step: (simplify) y+9+7y+63, Second step: (combine) 8y+72
I don’t know I’m just doing this for the points I’m sorry ☮️✌️
Three hundred nine million ninety nine thousand nine hundred and ninety.
No I think it most likely get you to a 1 digit number possibly and its because when you multiply a one digit number by a two digit number it most likely gets you to a three digit number and sometimes two by tow digit numbers gets you to a three digit number sometimes but mostly gets you to a four digit number.