I need help solving this math equation ASAP!

-1/2x -7= -11

Two lines parallel to the same plane are parallel to eachother

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

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}