Question

Last month, Margo bought a tree that grows 2.5cm each day. It was 5cm tall when she bought it and now it is 65cm tall.

Answer 1

Do you want to know how many days it took to reach that point? If so the answer is 24 days that it got from 5cm to 65cm.

Answer 2

Margo bought that tree when it was 5cm,
If you are calculating how long she had had that tree than the answer is 24 days (2.5*(65-5))
However if you are calculating what is the age of that tree then it’s 26 days.
I am pretty sure this is right answer