There are 7 days in a week so 2 weeks is 14 days. If he uses 5.5 pounds in 1 day, he will use 77 pounds in 2 weeks because 5.5 * 14 is 77 But then you will need to make it into ounces, so Times 77 by 16 (Because there are 16 ounces in a pound) and you will get 1232 ounces.
