Hello James!
Graph using the slope and y - intercept.
Slope:

Y-intercept: -3
The graph looks like this ↓↓↓
It is increase, because 15 is less than 18. Other way around, if the question is 18 to 15 yards, then that would be decrease, because it is getting smaller.
Yes, they are proportional. if you divide the second fraction down to simplest form, you get 7/12, which is equal to the first fraction.
Answer:
27,000 is the answer
Step-by-step explanation: