Last week the price of gas was $2.25. This week, the price has decreased by 15%. What is the price of gas this week

The mathematical expression 9€ t means

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

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}