Which set of numbers is correctly ordered from greatest to least?
07: 221,7.36, 3.16./2
073,7.36, 30, 3.1012
3.16/20,7: 36, 371,75
3.16-, 221,7.36,7

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}