0.85 is 0.85 rounded to the nearest hundredth.
.9 is 0.85 rounded to the nearest tenth
1 is 0.85 rounded to the nearest whole number
0 is 0.85 rounded to the nearest ten, hundred, etc.
You didnt list any graph?? Can you add it please :)
18 tenths is "1.8" and 2 tenths is "0.2" does this answer your question?