What is the perimeter of a square with side length denoted as 'q'?

q + q + q + q

q + 4

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If Aftab's age is represented by the letter 'a' and Shabnam’s age is 3 years older, how can we express Shabnam’s age?

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If 's' represents Shabnam’s age and Aftab is 3 years younger, what expression represents Aftab’s age?

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Q4.

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