tatiana earns money by baby sitting her little cousin. when she babysits for 2 hours she earns 27. when she babysits for 7 hours
1 answer:
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ANSWER
EXPLANATION
The outermost square tile has side length,
The area of a square is given by;
We substitite the given expression for the side length into the formula to obtain,
We expand using the distributive property to obtain;
This gives us:
The last choice is correct.