I just tried to help someone and i couldnt and now i feel like helpless

It takes evan 6 3/4 to mow 3 lawns. it takes 2 1/3 hours to mow me. gals lawn and 1 3/4 hot mow ms. lee’s lawn. how many hours does it take evan to mow the third lawn?

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.