Answer:
the answer is C
Step-by-step explanation:
If he swan the length and the width of the pool it would be 21 x28 = 588 sq ft.
by swimming the length and the diagonal of the pool (25 ft) found that by using the pythagorean therom so now you are multiplying 21 x 25 = 525
588-525= 63 ft he is saving
Answer: C. Silurian, Triassic, Jurassic, Tertiary
6/10 rounded to the nearest tenth inches a hour of rain fell