Answer:

Step-by-step explanation:
<u>Step 1: Add 79 to both sides</u>


<u>Step 2: Subtract 2x from both sides</u>


<u>Step 3: Divide 8 from both sides</u>


Answer: 
30 notebooks, 300 notebooks divided by 10 = 30
Its either centimeters or inches.
I prefer centimeters
99/33= 3
All you need to do is divide the real soccer felid by the scale drawing. Don't let the meters and the millimeters confuse you- it will still give you the right scale even though they are different units of measure.
1 millimeter= 3 meters
I hope this helps!
<em>~kaikers</em>