Math
posted by PlzHelp .
Barney works part time 30 hours a week at the cinema and earns $6 per hour. If he savea 1/3 of his paycheck each week how much does he have left to speed after 4 weeks?

30 * 6 = 180
(1/3) * 180 = 60 saved / week
180  60 = 120 to spend / week
120 * 4 = ?