Answer:
$131.71
Step-by-step explanation:
Given:
Original price: $234.45
Markdown: 78%
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Actual Selling Price: 131.71
Markdown: 102.74
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Perimeter=sum of side lengths...
P=2L+2W
P=2(L+W), in this case L and W are 30 and 40 so
P=2(30+40)
P=2(70)
P=140
So 140 feet of fencing is needed to replace the fence.
The amount of sod needed is equal to the area which is LW
A=30(40)=1200 ft^2
Your answer is 6x to the 10th power subtracted by 10y to the 5th power divided by 5y to the 5th power.