Question

10:99::09:?
10×10-1=99
09×09-1=80​

Answer 1

Answer:

it is very simple

Step-by-step explanation:

first say me in which class you are

and this is my number call me on this n

umber if any doubt

Answer 2

Answer:

the answer is very easy.

Step-by-step explanation:

it will be. 89.1