In final exam instructions, provide number of questions etc. I was aware I had an hour to complete the exam but was unsure of the length
If you go to the "Progress" tab, scroll all the way down. It will tell you how many final exam questions there are. For example, it might say 0/15, which indicates that there are 15 questions, and you haven't answered any yet. You can also use this tab to see your progress on the review questions as well.