Final answer:
Landen will be able to fill 6 completely full boxes by combining the lightbulbs from the 9 partially full boxes, each of which is 2/3 full.
Step-by-step explanation:
The question is asking us to determine how many completely full boxes of lightbulbs Landen would have if he consolidated the contents of 9 unopened boxes that are each 2/3 full of lightbulbs.
To solve this, we multiply the number of boxes by the fraction that represents how full they are to find the total amount of 'full box' units he has: 9 boxes × (2/3) full per box = 6 full boxes.
So, by combining the lightbulbs from the 9 partially full boxes, Landen will be able to fill 6 completely full boxes.