Acompany order 328 pens with the company logo printed on them. the company returned 82 of the pens because the wrong logo was printed on them .what percent of the logo did they keep

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)