Hey there!
So, we can put it like this:
2 hours is 8 sets of 15 minutes. We can use ordered pairs:
(2,15)
(4, 30)
(8, 45)
(16, 60)
(32, 75)
(64, 90)
(128, 105)
(256, 120)
There are 256 cells after 2 hours.
I hope this helps!
~kaikers
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