To find the median, you first need to arrange the numbers in ascending order. Here are your numbers sorted:
5, 5, 7, 8, 8, 10, 12, 12
Since there are 8 numbers (an even amount), the median will be the average of the two middle numbers. The two middle numbers in this sorted list are the 4th and 5th numbers:
8 and 8.
Now, calculate the average:
\[ \text{Median} = \frac{8 + 8}{2} = \frac{16}{2} = 8 \]
So, the median is 8.