We must find time by using the simple interest formula:
I = P x i x t
I is the interest
P is the total principal
i is the rate of interest per year
t is the total time in years
In this example, when we plug our known values in, our formula looks like this:
t =

t =

t = 4
So time (in years) would be 4 years.
Answer:
the first one
Step-by-step explanation:
the answer is the first one
Answer:
This would be a decay function.
Step-by-step explanation:
When a function is a growth function that means that it is growing but a decay function means that it is getting smaller.