Brookes quiz scores are as followed;

12/20, 12/18, 85%, 5/10

What is the order from least to greatest of the scores?

The easiest way to figure this problem is to convert all of these to decimals.

12/20 = 0.60
12/18 = 0.67

Take it from there.

To determine the order of the scores from least to greatest, we need to convert all the scores into a common format. Let's convert the scores to a decimal format:

12/20 = 0.6
12/18 = 0.6667
85% = 0.85
5/10 = 0.5

Now, we can arrange the scores from least to greatest:

0.5, 0.6, 0.6667, 0.85

Therefore, the order of the scores from least to greatest is:
5/10, 12/20, 12/18, 85%.