Answer:
Natural numbers , whole numbers, Integers
The answer is 1/14. -3/7 x -1/6. 3 crosses 6 2 time so you are left with -1/7 x -1/2 that is 1/14
The perimeter would be 3/8+3/8+4/5+4/5= 2.35 or 2 7/20 square foot.
I hope this helps.
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$819.20 is the answer considering each time the units increase by fours, it adds $204.80