The mitchells are renting a boat for the day. it costs $100, plus $20 for each hour. they have to pay for a whole hour even if they are not out there for a whole hour. for example if they boat for 3 and a half hours, they have to pay for 4 hours. they don't want to spend more than $250 for the day. how many hours can they boat? write an inequality and solve. a)100 + 20x ? 250. they can boat for 7 hours. b)100 + 20x ? 250. they can boat for 8 hours. c)100 + 20x ? 250. they can boat for 8 hours. d)100 + 20x ? 250. they can boat for 7 hours.