Answer :

To find out the percentage score from the given points earned, follow these steps:

1. Identify the Total Points and Points Earned:
- Total possible points: 20
- Points you earned: 12

2. Calculate the Percentage:
- First, divide the points earned by the total possible points. This gives you the fraction of points you earned.
- So, [tex]\( \frac{12}{20} = 0.6 \)[/tex].

3. Convert the Fraction to a Percentage:
- To convert a decimal to a percentage, multiply by 100.
- [tex]\( 0.6 \times 100 = 60 \)[/tex].

Therefore, you scored 60%.