Answer:
I'm pretty sure it's number 2 although I think you meant milk spoiling and that's a chemical change
3/5 or 60% of the tank will be filled in an hour.
<h2>g = -27</h2>
Step-by-step explanation:

Simplify

Cross Multiply

Answer:
The correct answer is actually around 21%. Are you sure the question wasn't asking what the approximate percent decrease from 85 to 70 was? Because in that case it would be around 17%.
Step-by-step explanation: