Celia put hot and cold water into a bathtub. For the first two minutes she added hot water to the bathtub. After two minutes, she added both hot and cold water to the bathtub. The hot water flows at the rate of 2.2 gallons per minute. The cold water flows at the rate of 3.4 gallons per minute. Let t represent the number of minutes Celia put cold water into the bathtub. Which inequality can be used to determine the number of minutes after which the amount of cold water Celia put into the bathtub is greater than the amount of hot water she put into the bathtub?