Let u=(q.1, s, t, u, v, w, x, y, z). a = q, s, u, w. y}. b= 9, , y, z), and c={v, w, x, y, z. determine the elements of the set shown below. an(buc) o a {9, s. u, w, y, z} ob. {9.1, w. y, z) oc. {9,, wy) od. {q, y, z)

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?