Timothy attended a seminar on egyptian heritage and culture. he saw a recreation of ancient images at the seminar. the images depicted the different egyptian rituals of that time. what was the function or purpose of the images?

It could be that they wanted to remind people of the things that the Egyptians used to celebrate, or it could be that they wanted to have you imagine the rituals better by showing you what the Egyptians did in their culture.

tell me if this helped you

They have would make the most sense in this sentence, I believe.
We don't know that they're even talking about a "he". All it says is "college student".
Hope this helps!
~{Dunsforhands}