Hello Khan Academy and anyone reading. I just want to say I think you should add more to your hints. I'm currently on Get Ready for Algebra 1 - Lesson 4: Intro to Rates and I know my ratios and what to do very well, but all you show is, for example: Ruben bought 6 comic books for $21. Each comic book was the same price. What was the cost for 1 comic book? Now when I go down and take a look at your Hints, all you have to show is 21 divided by 6, but no work-it-outs. I feel like you should add those so people who are learning on here can get a better understanding of what they can do to find the answer. Please add this!

                                                                     -Joshua K. - Student from PMS