David says you can have an unlimited number of equivalent fractions to any given fraction. is he right?

Bugs bunny was 33 meters below ground, digging his way toward pismo beach, when he realized he wanted to be above ground. he turned and dug through the dirt diagonally for 80 meters until he was above ground

How many $20 bills do you need to have to make $280

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