Welcome to the Treehouse Community
The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)
Looking to learn something new?
Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Calvin Secrest
24,812 PointsNot sure what Im doing wrong?
Fill in the black to use the not operator to negate the following
_________________ (car_speed > 40)
!(car_speed > 40)
I am for certain this is the correct way to used the not operator for ruby. Please let me know if this isn't correct. Thanks!
1 Answer

Steve Hunter
57,684 PointsI agree with you - it worked for me: