Arailing needs to be build with 470.89 metric ton of iron the factory purchased only 0.38 part of required iron . how much iron is needed to complete the railing?

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.