explain how to determine the long term (end) behavior of the following two polynomials: cubic polynomial with negative leading coefficient like y=-2x^3+3x^2+x+1; quartic polynomial with positive leading coefficient like y=5x^4 + 3x^2+4×+9​

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?