Answer:
The answer is 60%
Step-by-step explanation:
When you're finding percent, you always have to divide the numbers.
12/20 = .06
0.6 = 60%
And you always do this out of `100%
So, the 20 lessons equals to 100% and the 12 lessons she finished is the 60% she finished so far!
Please mark as brainliest!!<3
