Isabella spends 6.81 on paintbrushes and jars of paint. how many items does she buy? complete the explanation on how you find your answer. paintbrush 0.95
jar of paint 0.99

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)