Final answer:
Matt's change in weight during high school was 67 pounds.
Step-by-step explanation:
To calculate Matt's change in weight during high school, we subtract his initial weight from his final weight.
Final Weight = 162 pounds
Initial Weight = 95 pounds
Change in Weight = Final Weight - Initial Weight
Change in Weight = 162 pounds - 95 pounds
Change in Weight = 67 pounds
Matt experienced a normal growth in weight, which is expected during adolescence due to factors like increases in muscle, bone density, and height. It's important to note that such weight gains are typical during high school years and part of healthy development.