At December 31 of the current year, Cullen Corporation had a number of items that were not reflected in its accounting records. Maintenance and repair costs of $770 were incurred but not paid. Utilities costing $240 were used but not paid, and use of a warehouse space worth $1,900 was provided to a tenant who had not been billed as of the end of the month. Record the required adjusting entries related to these events.