In two or more complete sentences, describe how you could model the following sum on a number line. in your answer, make sure to include the result of adding these two numbers together. -3.5 + 4.2

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.