Andrew borrows $79,500 for 5 months on 6.30% interest rate in his saving account. calculate the simple interest

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.