... Stella uses the expression 0.40a, where a is the original attendance at a play, to find the reduced attendance at the next performance. Which is an equivalent expression?

You have 2 sides that are 2 cms and you have 6 sides that are 1/2 cm and you have 4 sides that are 1 cm. the smallest sides are 1/2 the medium sized sides are 1 and the smallest are 1/2. so to find the perimeter you have to add them all up together so your answer will be 11 cm's

I’m not sure i’m sorry

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