The answer to this problem would be 33 dollars.
First and foremost, the question is only asking of the presented percentage in the problem and nothing else. If then that is was said that what is one hundred and fifty percent of twenty two dollars and add it to it or something, then that would be something different. To understand this more, let's take it by piece.
The easiest way would be answering first what is the one hundred percent of twenty dollars which is still twenty two dollars. Now fifty percent would be the half of it. So, half of twenty two dollars would be eleven dollars. If what is asked is one hundred and fifty percent, just add twenty two dollars and eleven dollars to get thirty three dollars.