That means there's no employer and employee relationship between you and Course Hero. So, you get paid only for answering students' questions and and have the flexibility and freedom to do this work whenever and wherever you like!
Arrays have a faster access time because all of the data in an array is stored in a contiguous block, making it very easy for a computer to retrieve data. Since all members of an array are in a contiguous block, they are all right next to each other,...
No, you are not required to tutor for a certain amount of time or answer a minimum number of questions. This is an independent contractor position. However, the higher your rating, the more opportunities you'll receive to earn money.