In your Workspace exercises, you are only given one attempt for each question. So it's important that you do all your reading and some practice before attempting your assigned questions.
Please note, you do not lose any marks if you request a hint or watch a teacher video. However, you will lose partial marks if you keep requesting the next step to a question and will be awarded no marks if you make no attempt to complete a question.
We understand that MyMathLab assignments do allow for repeat attempts at a question. This is functionality that is on our roadmap for a future release.