Question

*please give me answer very fast with fully explanation iknow answer is 90 but i want Answer with full explanation*​​

Answer 1

Answer:

90

Step-by-step explanation:

2*3=6

3*4=12

4*5=20

5*6=30

6*7=42

9*10=90

notice the pattern

Answer 2

9=81

Step-by-step explanation:

2×3=6

3×4=12

4×5=20

5×6=30

6×7=42

9×9=81