What percent of 21 is 7? a- 21=x.7; 30% b- 21=x.7; 3% c- 7= x.21; 300% d- 7 = x.21; 33.33%

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

Find two consexutive odd integers such that the sum of their square is 650

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}