Use the number line below to determine the ratio of bc to gk. a. 5: 1 b. 4: 1 c. 1: 5 d. 1: 4

Let u = {q, r, s, t, u, v, w, x, y, z} a = {q, s, u, w, y} b = {q, s, y, z} c = {v, w, x, y, z}. list the elements in the set. a ∩ (b ∪ c)a) {q, s, w, y}b) {q, y, z}c) {q, s, u, w, y, z}d) {q, r, w, y, z}

Hi i’m not sure how to do question 20 if u could explain how to do it that’d b great

Witch sequence shows a pattern where each term is 1.5 times the previous term