The answer is 360 million or 720 million cells after 4 hours of doubling.
I think it would take 24 hours or 10 hours
explanation: if you have 4 hours from Erin, and 6 hours from Cathy, it’ll most likely be 10 hours because you’re trying to find out the total amount. (keyword: together & how many)
D) 3x+6
x + 1 + 2x +5
That will = D
It would increase the average, just by a bit.
<span>a
-7xy3 + 8x2y2 - + 4x4</span>