6 hours
Working;
If 12 cookies take 30 minutes,
Then one cookie takes

144 cookies would take <span>

* 144
=360 minutes or 6 hours</span>
<span> -k - (-8k) = -k + 8k = 7k</span>
C
..............................
Answer:
4x+12
Step-by-step explanation:

Answer:
x = 12 efg = 132
Step-by-step explanation: