For this case we have the following expression:

We multiply both sides by: 

We divide both sides by 216:

To divide powers of the same base, we place the same base and subtract the exponents:

Rewriting:

To multiply powers of the same base, we place the same base and add the exponents:

We know that any number raised to zero is 1, 
So, for equality to be true:

Answer:

Answer:
sadasdsdfliygsadluhgasda
Step-by-step explanation:
asdasdasdasdas
sdasdaskudygasligdliausgldiuhgal;siughdliasd
It is a part of slope form ( intercept
2. an=20+an−1 and a1=145
she starts with 145 so a1=145 and then adds 20 every month: an=20+an−1