With this i'm not sure how to answer it

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?

Adozen bananas weigh 3 pounds how many ounces does 1 banana weigh

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.