Find the length of each side using the distance formula:, then add all three side length for the perimeter.
Area is found by multiplying the base by the height by 1/2.
See attached picture for the answer:
Initial is 12
Percent 1.05(I think but you might have to convert it)
Y=12(1.05)(5)
Y=63
The answer is 3/10
Explaintion
Duh -37 Because 37-9 is 37 and so the answer is -37
There are 12 boys 21/7=3 so 4(3)= 12
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