Answer
9 years
Work Step by Step
The equation is A=100(1.08$)^{N}$. You have to find out how many years it takes to have 200 dollars so you plug in a=200:
200=100(1.08$)^{N}$ -divide both sides by 100-
2=(1.08$)^{N}$ -solve-
n $\approx$9
You can use a table, by plugging in the value of n=1,n=2 n=3 and so on until you find the value of A is 200.You can draw a graph and find the n value at A=200
