Answer:
12) 26x^2+22x+25
13) -15x^2-21x-11
14) x^2+32x+18
15) 9x^6+10x^5-15x^4+14
Step-by-step explanation:
Caiden's balance after 5 years would be $831
<u>Explanation:</u>
Given:
Principal, p = $475
Rate of interest = 3.8%
time, t = 15 years
Balance after 15 years = ?
We know:

where,
n = number of compounding periods
r = rate of interest
t = number of years
Substituting the value;

Therefore, Caiden's balance after 5 years would be $831
A formula is a way of an expression in order to make solving a question easier than ever.
*that's what I think . ...*