Answer
Tex
Work Step by Step
Change for Tex = 8-12 = -4
Change for Dex = 2-3 = -1
Change for Rex = 2-4 = -2
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.