Answer:
graph A
Step-by-step explanation:
if you use the substitution method is graph A
155 is your answer lmk if you need anything else
1)t=S/U=2.4/12=0.2
2)t=S/U=8.4/36=0,23
3)0.23-0.2=0.03
Ok so you would plug in 18 for the x so it would be 6(18)-12 and then 6x18 is 108 and 108-12=96 so your answer is 96