Question

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Answer 1

Answer:

4-121

5-3

6-4/9

7-5.2*10^8

Answer 2

Answer:

$1)11 {}^{2} = 121 \\ 2)12 \\ 3) \frac{4}{9} \\ 4)5.2 \times {10}^{8}$

Step-by-step explanation:

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