What is the proportion for y= 15x

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?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122