Answer: a) 8.779 years
b) 8.664 years
<u>Step-by-step explanation:</u>
a)

- A: accumulated amount (balance)
- P: principal amount (original/initial investment)
- r: interest rate (convert to a decimal)
- n: number of times compounded per year
- t: number of years
Given: A = 1800, P = 900, r = 8% = 0.08, n = 3, t = unknown

b)


(105^3) * (105^3).....keep the base and add the exponents
Answer:
Not a full question
Step-by-step explanation:
Where’s the graph?
Answer:
the answer to this question is 6/5