Hello,
If you lose 3 pounds per week, after 3 weeks you lose (3)(3) = 9 pounds.
The change in your weight is represented by the integer 9 (pounds).
Hope this helps!
The perimeter means the sum of all sides.
So, In pentagon, it would be: 5(15) [ With five sides ]
In short, Your Answer would be Option C
Hope this helps!
