What’s the Domain and Range?

Find the difference (8ab+a+2) - (3ab+6)

Which one is true about the hexagons ?

You and a friend went to the movies.you spent half your money on tickets. then you spent 1/4 of the money on popcorn, $2 on candy, and $3 on a soda. if you have $1 left, hiw much money did u take to the movies?