Can you help me i really don't understand math at all If r = 12.5 and s = |−13|, which of the following inequalities is not true?

A)r ≠ s
B)r < s
C)r ≥ s
D)r ≤ s

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?