In each equation, select an operation to make the equation true. 1. 24 ___ ¾ = 18
2. 24 ___-¾ = -32
3. 12 ___ 15 = -3
4. 12 ___ -15 = 27
5. -18 ___ -¾ = 24

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.