Jeff is going skiing. it costs $65 to rent skis plus $10 an hour to ski. he doesn't want to spend more than $120 and you have to pay for a whole hour even if you don't ski the whole hour. he wants to know how long can he ski. write and solve an inequality to answer jeff's question. a) 65 + 10x ≤ 120; he can ski 5 hours. b) 65 + 10x ≤ 120; he can ski 6 hours. c) 65 + 10x ≥ 120; he can ski 5 hours. d) 65 + 10x ≥ 120; he can ski 6 hours.