The number of people signed upfor a bus trip decreased from 45 to 35. What is the percent decreased? Round to the nearest percent.

22%

Step-by-step explanation:

The decrease is ten people, so we need to find what percentage of 45 is 10. To do this, we divide 10 by 45 to get 0.222 ..., meaning 22.222 ... %. We round to 22%, meaning there is a 22% decrease.