Multiply. Write each product in simplest form, 1 4/5 x 1/2

8/9
9/8
1 1/8
1/8

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

What is perpendicular to y=-1/2x+11

Answer asap and if you do you will get brainliest. catherine buys a gallon of ice cream from the store. after taking it home, she eats a fifth of a gallon of ice cream. her sister eats some of the ice cream as well. if two-thirds of the original amount of ice cream is left, then what fraction of a gallon of ice cream did her sister eat?