First, calculate the total number of ounces in hamburger that Gary consumes per week. Each day, he eats 12 ounces of hamburger (2*6=12). Multiply 12 by 7 to get his weekly total of 84 ounces. Now, convert ounces to pounds. There are 16 ounces to 1 pound. 84 divided by 16 is 5, with a remainder of 4.