If

is left, that means

was spent. So

of the total amount is equal to 39.. Let's say x to the total amount.
I actually don't have enough information to complete this question but if you have a positive slope the line goes either up and right or down and left but when it is negative it goes down left or up right.
Answer:
325 dollars
Step-by-step explanation:
find 10% of 39000 3900 then divide it by 12 months which is 325 every month
-5m = 4 - 6m....add 6m to both sides
6m - 5m = 4
m = 4 <==