It's not wrong.....!!!!
.1929 to two decimal places IS .19
We look to the digit past the first 9....since this is 2, we leave the 9 as it is......
I'm not sure why it says it's wrong. Something must be wrong with the Math website if it's not accepting my answer. I did another 0.8190 and my answer 81.90 was accepted.
That looks like a different question.
In your second case, it appears that you have been asked to convert to a percentage (to two decimal places).