Last week, 97% of you knew about the 150th anniversary of the Transcontinental Railroad, but only 54% knew that Salt Lake City and multiple airlines will pay more than $10 million to replace security machines at the airport. Think you kept up with the news this week? Take our quiz to find out. A new one will post every Friday morning. You can find previous quizzes here. If you’re using The Salt Lake Tribune mobile app, click here.

For clarification and fact checking — but hopefully not cheating — purposes, you can find the stories referenced in each question here: Question 1, Question 2, Question 3, Question 4, Question 5, Question 6, Question 7, Question 8, Question 9, Question 10, Question 11 and Question 12.