Answer:
a)1.41666667 b)705882353 / 1000000000
Step-by-step explanation:
60 - 18 = 42
42/60 x 100 - 70%
To check this do 0.7 x 60 (which gets you 18, so it is right)
Given:
The side of a square a, s+3.
The perimeter of a square is the sum of the four sides of the square. Hence,

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