Answer:
C. c = -4
Step-by-step explanation:
you must get c by itself. you have to divide both sides by 10. this gets rid of the 10c and keeps both sides equal
-40/10 = c
c = -4
(5 + 6)3 would represent what you want.
18/6
18= the number of trucks
6= the number of hours
18/6= 3 trucks per hour
