Determinati nr nat a b si c stiind ca a+b +c+d=20. a: b=0. c+d=1. d: =2

On saturday a souvenir shop had 125 customers.sixty four percent of the costumers paid with a credit card. how many costumers paid with cash?

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}

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?