Mario earns $9.40 per hour at his part-time job. Last month, he worked 7 1/4 hours the first week. 8 3/4 hours the second week, 5 1/2 hours the third week and 6 3/4 hours the fourth week. Mario puts half of his paycheck in the bank every other week starting with the first. How much money did Mario earn each week? How much did he put in the bank last month? How much money did Mario have to spend from his 4 paychecks.?