Answer:
It's D.
Step-by-step explanation:
The shorter period loan has the same total interest for the same loan amount, so it has the higher effective interest rate: 80/12 is higher than 89/14.
The answer is 6n^3+n^2+6n-4 I hope I helped you!
The Greatest Common Factor (GCF) of 189 and 200 is 1.