Question

if tens digit of a two digit no is 9 and unit digit y,the no is​

Answer 1

Answer:

The answer for the question is 90+y

Answer 2

Answer:

how would u write 29 in unit form.

yeah that will be 2*10 + 9.

where 2 is the tens digit and 9 is the ones digit.

similarly here ur answer will be 9*10 + y.

which is 90 + y

hope u understand it.

thank u.