The following are transactions for the Sky Blue Corporation:

Collected $3,000 rent for the period October 1 to December 31, which was credited to Deferred Revenue on October 1.

Paid $1,680 for a two-year insurance premium on October 1 and debited Prepaid Insurance for that amount.

Used a machine purchased on October 1 for $50,400. The company estimates annual depreciation of $5,040.

Required: For each of the above transactions for the Sky Blue Corporation, give the accounting equation effects of the adjustments required at the end of the month on October 31.