Direction for questions 1 to 8: In each of the following questions find the missing number/letters from the given responses.  1. (12, 5), (20, 6), (30, 7), (42, 8), (56, 9)  (a) (72, 10)    (b) (80, 10)   (c) (63, 10)   (d) (72, 11) 2. G, H, L, U, K, __…