Answer:
20%
Step-by-step explanation:
1,9,11,19,21,29,31,39,41,49,51,59,61,69 this is that series of numbers .These are total 14 numbers out of 70 so 14/70×100 gives us 20 % occurrence of 1 or 9 at unit place.
3080
this is because after the decimal there is a 3 and when you round with a 3 the number stays the same.
x = 44
I hope it's helps you
