Margo has owned the plant for 24 days.
Let's denote the initial height of the tree as
(5 cm), the growth rate as r (2.5 cm/day), and the current height of the tree as h (65 cm). The number of days Margo has owned the plant is represented by d.
The equation for the height of the tree as a function of time is given by:
h(d)=
+ r ⋅ d
In this case, h(d)=65 cm and
=5 cm, so the equation becomes:
65 = 5 + 2.5 ⋅ d
Now, solve for d:
2.5 ⋅ d= 65 − 5
2.5 ⋅ d=60
d=

d=24
So, Margo has owned the plant for 24 days.
Question
Last month, Margo bought a tree that grows 2.5 cm each day. It was 5 cm tall when she bought it and now it is 65 cm tall. Write an equation to determine the number of days (d) Margo has owned the plant. Find the number of days Margo has owned the plant. Find the number of days Margo has owned the plant.