Nick is an 18-year-old male entering college in the fall. He is 5'7" tall and currently weighs 172 lbs, and he has 10% body fat and 155 lbs in fat-free mass. He wants to lower his body fat to 5% and wrestle in the 165-lb weight class. He must have his weight assessed by the athletic medical staff before the first official team practice to determine his minimum weight class.
If Nick achieves his goal of 5% body fat, will it be enough for him to compete at the 165-lb weight class without compromising FFM? (show your work)