fiona348 fiona348 07-07-2021 Mathematics contestada 70. If set A consists of (3, 5, 7, 9) and set B consists of (1, 2, 3, 5, 8, 13), what is the average of the union of set A and set B? A) 6 B) 3 C) 48 D) 56 ⚠️will give brainliest to the best answer