Outline the trend of inflation over the past 3 years
I haven't noticed inflation in the past 3 years, but then I don't live where you live.
Go to https://www.google.com.au/ and conduct searches.
To conduct a search for this topic, for example, type in "trend of inflation over the past 3 years" and then press the Enter key.
Read lots and take good notes.
You can do this for all your other assignments, too.