10 students bring muffins to a bake sale. 6 students bring brand muffins. the rest bring blueberry muffins. how many blueberry muffins do the students bring?

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.