Clark works all year at the front desk of the Dew Drop Inn and earns a salary of $30,000. He is offered the option of a $400-per-month living allowance or rent-free use of a room at the Dew Drop Inn....

Clark works all year at the front desk of the Dew Drop Inn and earns a salary of $30,000. He is offered the option of a $400-per-month living allowance or rent-free use of a room at the Dew Drop Inn. Clark chooses to live at the inn in a room that normally rents for $400 per month. How much gross income does Clark have from the Dew Drop Inn?