actually-- sorry for the misunderstanding here, @paige.parker and @terence.stone25. there aren't any worksheet answer keys for lesson 7, so there's nothing listed on level 1.
paige-- if you're looking for answers to the check for understanding questions that come at the end of the lesson, those are shown directly in the level where the question is shown on code studio. for example, this is the first question in the 'check your understanding' section for lesson 7:
note that the answer to the question is shown in the blue box at the bottom of the page. these wrap up assessment questions either have direct answers (as is the case here) or some commentary for the teacher of what to look for in the response.
hope this helps!