Question

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Answer 1

Step-by-step explanation:

here 4+4 = 20 = 4²+4

5+5 = 30 = 5²+5

6+6 = 42 = 6²+6

7+7 = 56 = 7²+7

therefore,

9+9 = 9²+9 = 90

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Answer 2

here is your answer

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