6. jaylyn spent $10.79 buying brownie supplies. after the bake sale, jaylyn earned $31.50 from her sales.
considering what she spent on supplies, how much profit did jaylyn make?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.