Estimate the product of 67 and 73 by rounding each number to the nearest 10 before multiplying. * 4891 140 4900 5000

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.