Use the number line below to determine the ratio of ad to ei. a number line. from left-to-right, the points are a, 0; b, blank; c, 10; d, blank; e, 20; f, blank; g, 30; h, blank; i, 40; j, blank; k, 50. a. 3:8 c. 3:4 b. 4:3 d. 8:3 please select the best answer from the choices provided a b c d