Question

11th question I need an answer

Answer 1

picture continution
here 0≤r<9
I.e r=0,1,2,3,4,5,6,7,8
if r=0,2,4,6,8 then a is even
if r=1,3,5,7 then a is odd

Answer 2

hope it is helpful mate☺☺☺☺
if it is helpful to you plz mark as brainliest ✌