Answer:
She subtracted 7x instead of dividing it. Personally, i wouldn't have done that. I would subtract the 14 first, then divide.
(9x-2) - (5x+6) =
4x-8 , this is your profit function
Im.not sure but i tjink its 10
27x6x60=9,720 *You can use mental math by multiplying 27 by 6 and adding the 2 zeros to the end of the product*
Communitive Property of Addition
