The people who need this are students who want to feel more confident and prepared for the exam, family members who can't help their children because they are too busy and tutors who want to do this as a side-hustle.
As far as I know there are no existing solutions at the moment for this need so I think this will be an excellent solution for everyone to use since this will be the first app for reserving parking spots. Once they use the app, they could go to the store in an quicker way than ever before.
And also, by making a free problem solver (the solution), homework answers will be readily available for people for free. There will be more features in upcoming updates, some with a premium subscription according to the number of people using it (remember that the homework solver will always be for free).