Simplify the radical below

What is the missing step in this proof ?

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.

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers