They would be 20, 21, 22, 23, and 24
Answer: 
Step-by-step explanation:
Let be "x" the original volume of the solution (in milliliters) before the acid was added and "y" the volume of the solution (in milliliters) after the addition of the acid.
Set up a system of equations:

Applying the Substitution Method, you can substitute the second equation into the first equation and then solve for "x":
4.5x - 9.5 > 62.5
4.5x > 62.5 + 9.5
4.5x > 72
x > 72/4.5
x > 16 <==
60,000 would be the answer because it stays the same if under 5 it stays if above 5 rounds up once
Answer:
Option 2
Step-by-step explanation:
It's a rotation