Which selection from the story helps the reader to understand that Andy had a hard time with his grades before the map test?

Hello. You did not show the selections to which the story refers, nor did you inform the text where those selections are inserted. This makes it impossible for your question to be answered. However, I will try to help you in the best possible way.

To answer this question you must read all the selections that are presented. If Andy had difficulty before the map test, the selection that will show this will be the one that presents these difficulties, or that shows how Andy suffered and was harmed before that test. This selection can also show how the test was beneficial for Andy, being able to modify his grade in a positive way.

with whom will you be coming to the party? this is written correctly.