The Baltimore Zoo feeds their elephants a combination of fruit and grass. The zookeeper would like to create a model to represent how much food the elephants eat. The elephants eat 22 pounds of fruit and an additional 30 pounds of grass per elephant. Which of the following models the linear relationship between the total weight of elephant food, f(x), based on the number of elephants, x? Select one equation, one table and one graph. 3 total selections.