Where does 0.09 and 0.019 go on the number line

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

Which one is the correct answer, and why?

Write the equations in logarithmic form 9^4=6,561