How do i get the answer to 0.6 divided by 25.2

Find the commission on a $590.00 sale if the commission is 15%.

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.

Iknow its nothing to do with education, but what type of thing should i wrote here? ? : ) its for mcdonald's btw.