Today ian wants to run less than 7/12 of a mile. write a fraction with a denominator of 4 to represent a distance that is less than 7/12 of a mile

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.