Ruby on Rails/Getting Started/Is everything installed?

If everything was installed correctly you should be able to do the following: Type irb -v on the command line and see the version number for irb, the interactive Ruby interpreter What version do you expect to see here?? Type gem -v on the command line and see the version number for RubyGems What version do you expect to see here?? Type rails -v and the installed Rails version number should be displayed What version do you expect to see here?? Type rails testapp and a new Rails app should be created in a directory called testapp Change into the testapp directory and run script/server, launching the built-in Rails server Open a browser and go to the URL http://localhost:3000. You should see the What should you see here??. Type rake and the Rails application's tests should run Will they work out of the box? What is the expected output?