Answer:
a=4
b=6
perimiter=38
Step-by-step explanation:
you take the side lengths by it and you can subtract and stuff then you add them all up to find the perimeter
I don’t know what you mean by “story” but 1/3 divided by 5 is 0.06
X = 90 - 42
x = 48
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In decimal form it is 1.625. There’s also an app for fractions...