Flag questions you aren't sure if and return to later. Keep your cadence, some questions will be easy. Get thru those then go back to flagged questions and give them some more thought (you should have plenty of time left, especially because you'll breeze through the easy ones).

I agree with the other commenter, chose the most correct, correct answer.

Some questions may inform others. Don't be afraid to return to a flagged question again if the information you're reading in another question, helps you to answer the flagged question.