North Slope Realty Co. pays weekly salaries of $7,900 on Friday for a five-day week ending on that day. What...

North Slope Realty Co. pays weekly salaries of $7,900 on Friday for a five-day week ending on that day. What is the adjustment at the end of the accounting period, assuming that the period ends (a) on Wednesday, (b) on Thursday? Indicate each account affected, whether the account is increased or decreased, and the amount of the increase or decrease.