I think that the answer is =4.99e23 photons hope this works!
Well think about it... 12 rolls is already out since they are asking about 16 rolls. 320 divided by 16 is 20. So, the service bought 20 cases of paper towels containing 16 rolls.
I am going to take a guess C
On the left of the paper it should be the “cue Column and at the right side of the paper it should be “Note taking Column” and the bottom of the page it should be the summary section.
