Can you show the answer choices but I believe is 18
21 would be the answer hope this helps :)
The answer for this one is 29 and 13. Hope it help!
A coefficient is a number that is attached to a term.
For example:
3x² - 5x + 6 = 0
The coefficient of x² is 3.
The coefficient of x = -5.
Hope this explains it.