Answer: A
Step-by-step explanation: I got A; 162, here's the walkthrough:
The formula for finding the amount after a percent is applied:
Amount = Whole number * part percent / 100
Let's plug in the numbers:
Amount = 180 * 10 / 100
180 * 10 = 1800
= 1800 / 100
= 18
We got 18, but we need to subtract that from the original number, 180 to find the current level. So,
180 - 18 = 162
And 162 is one of our choices, A. I hope this helped!