If you don't receive payment, you can open an unpaid item case in the Resolution Center as soon as 2 full days (48 hours) after the listing ends. For example, if the listing ends on October 5 at 11:15 am, you can open a case on October 7 at 11:15 am.
Following this caveat, the breakdown of the cost is as follows: 1  In-state tuition for a public four-year college: $7,605 : 30 credit hours = $253.50/credit hour.  Out-of-state tuition for a public four-year college: $19,595 : 30 = $653.16/credit hour.
It sounds like you do not. Anyway, a unit is a college credit hour. Most college courses are 3 units (credits). Normally, real colleges are 12 units a semester. My local school is 100 a unit (a credit hour)... so a term (a 12 week semester) costs 1200.00.