Answer
false
Work Step by Step
The crossed out "E" symbol means that the number preceding it does not belong to the set, but in this case, the number 7 IS an element of the set {1, 3, 5, 7}.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.