Ted was shopping for a new computer. He found one that met his needs and agreed to purchase it for $1,200. After he had paid for the computer, he...

Ted was shopping for a new computer. He found one that met his needs and agreed to purchase it for $1,200. After he had paid for the computer, he discovered a rebate coupon inside the packaging. He filled out the required form and sent it to the manufacturer. The next week he received a $100 check from the manufacturer. How much should Ted include in gross income?