I need to find how many boxes can be shipped in an 18 hour period. I also provided the graph to help answer

Answer:
216 boxes
Step-by-step explanation:
you can see by the highlighted point that in 5 hours 60 boxes are shipped. that means 12 boxes per hour (60/5=12)
When you know this just multiply the hours by 12 and you get 12*18=216