There are dozen whole snack bars on a plate. There are 3 friends. Carl eats
2.8 eats 2.8 snack bars.
Dave eats 2.7 snack bars.
Tony eats 2.5 snack bars.
Carl said he ate the most snack bars. Who is correct? How many snack bars did Carl, Dave, and Tony eat? How many snack bars are left on the plate? Show all your mathematical thinking.