Answer:
4.5
Step-by-step explanation:
First, you have to put them in order from least to greatest
0,2,3,4,5,6,7,9
Now we start crossing out the ends on both sides until we get to one in the middle.
2,3,4,5,6,7
3,4,5,6
4,5
Now, we will add these two and then divide them by 2
4+5=9
9÷2=4.5
