Answer:
A. 15, 20, and 25
Step-by-step explanation:
Note that 3-4-5 is a pythagorean triple via following:

Dividing 15, 20, and 25 by 5 nets you the pythagorean triple 3-4-5.
its equal to because if you do +50-50 and keep going it will always go back to 0. Hope this helps! :D
Answer:
30
Step-by-step explanation:
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15% of 425
(15/100) * 425
(3/20) * 425
(3/4) * 85
255 / 4
63.75