Posted by Caitee on .
Cells ina certain plant can triple in number every 15 minutes.How many times greater is the number of plant cells after an hour and a half then the number of cells the plant had origanally?

math 
Nicole,
It triples every 15 mins. So that's 3x's greator. There are 4, 15 min intervals in an hr so 3 x 3 x 3 x 3=81 times greator than when you started

math 
Reiny,
an hour and a half has 6 periods of 15 minutes, not 4
so the multiplication factor is
3x3x3x3x3x3 = 3^6 = 729 
math 
Caitee,
Thanks.Reiny you were correct.