Answer:
9
Step-by-step explanation:
2x=28-10
2x=18
x=18÷2
x=9
You can add the numbers together so:
12.6
3.1
<u>+ 5.4
</u> 21.1
<u>
</u>Since the sum of the numbers is 21.1, it is greater than 20<u>
</u>
I cant see the model but 2/3 is the same as 4/6