NEED HELP WITH PART 3Snack Bars

There are a dozen whole snack bars on a plate. There are three friends. Carl 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. Is Carl correct?
Yes, he is correct





How many snack bars did Carl, Dave, and Tony eat?

8.0




3.How many snack bars are left on the plate? Show all your mathematical thinking.