Answer:
10 100 1,000
30 60 1,800
40 40 1,600
Step-by-step explanation:
First you take each width and multiply it by 2 to get both widths.
Then you take 120 and subtract each width from it because it's 120 feet for the entire fence.
Next you end up with the length.
Finally you multiply the length by the width to get the area.