42.3952 to the nearest thousandths

Micheal is 4 times as old as brandon and is also 27 years older than brandon. how old is micheal

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?