Answer:
If there is no interest then $9000
Step-by-step explanation:
-200t represents paying back 200 dollars a month
9000 represents original debt (including interest)
It is on Sunday,September 23 @1:10 P.M .
You first need to make sure the denominators are equal, then when they are, you can add/subtract the numerators. Then you can place the result over the common denominator.
I hope this helps! :)