When preparing a fresh one, my mother used 3 L of Water, .0.5 L of fruit pulp, 0.5 L of orange juice and 0.5 L of Syrup, so how many liters of soda did she prepare?

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.