If you have included an activity in your tutorial and would like to see the responses of each of your learners, the tutorial report is where you can view the responses.
Click settings and then tutorial report. Once in the learner report, click on the tutorial name you are looking to view activities for. Next to your activity name select the dropdown menu arrow to view all the activities that have been submitted.
To approve or reject the activity click on the lightning bolt icon and select Approve or Reject. This will take you to a discussion board to provide feedback to your learner.