Need answer ASAP PLS

Simplify 4 square root of 2 end root plus 7 square root of 2 end root minus 3 square root of 2 . (1 point) 2 square root of 8 8 square root of 2 8 square root of 6 6 square root of 8

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?