Ameter stick perpendicular to the ground casts a 1.5-m shadow. at the same time a telephone pole casts a shadow that is 9m. how tall is the telephone pole

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.