happypug2009 happypug2009 09-10-2022 Mathematics contestada Andy has $310 in his account. Each week, w, he withdraws $30 for his expenses. Which expression could be used if he wanted to find out how much money he had left after 8 weeks? 1) 310-8w 2) 280+30(w-1) 3) 310w-30 4) 280-30(w-1)