Work Step by Step
The equation according to the text of the exercise is (if the hours danced is $x$): $=(15+35+20)+x(4+8+3)=70+15x$
You can help us out by revising, improving and updating this answer.Update this answer
After 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.