Answer:

1. is 9and 10

2. is 7 and 8

3. is 5 and 6

4. is 11 and 12

5. is 15 and 16

6. is 2 and 3

7. 12 and 13

8. 9 and 10

9. 10 and 11

10. 169 is a Rational Number because 13 × 13

Step-by-step explanation:

1. is 8 and 9

because 9 × 9= 81 and 10 × 10= 100

81 is less than 82 and 100 is greater than 82

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