Question

Help i am in need of help

Answer 1

Sure. The height of the tree is a function of the time in days. Let's call the function h(t) where t is the time in days.

At t=0 we know h(t)=5 centimeters and each day we increase 2.5 centimeters. So our function is

`h(t) = 5 + 2.5 t`

We want to find t when h(t) = 65 so our equation is

`65 = 5 + 2.5 t`

That's the answer for the first box. We solve for t:

`65 -5 = 2.5 t`

`t = (65 - 5)/2.5 = 60/2.5 = 24 \textrm{ days}`

Answer 2

A = 60 divided 2.5
B=24