factor completely over the set of integers: 16x^4-81. Sara graphed the polynomial y=16x^4-81 and stated "All the roots of y=16x^4-81 are real" Is sara correct? Explain your reasoning answer

Can someone check my answer? you : )

Given right triangle xyz, which correctly describes the locations of the sides in relation to

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?