Does anyone have a good bonus question for high school seniors?

Question

I teach a senior level math class and they are taking their last test tomorrow. Does anyone have a good question I could use as a bonus? I am looking for something specifically related to them. For instance, last time I asked them "What percentage of seniors in the US will not be able to read their diplomas when they graduate? If you have a different statistic and source, that would be great!

Answer 1

What is average income of a High School Graduate vs a College Graduate?  And how does that translate into earnings over a lifetime(25 to 64)?

Answer 2

What is the current amount of US debt?  round off to the nearest 100billion.

Answer 3

ok do like forsrit grade quesrtions that have to do with reflection and rosation and turning..they will get confused because they forgot how to do them