To set the equation,we can first find how much price would be raised within a year:
=500×(1+7%)
=500×1.07
As the years go by the increase would accumulate,and the equation would be:

Hope it helps!
W=15
Subtract 80 from both sides then you divide by -2w.
The formula of a distance between two points:

We have the points (-1, 8) and (5, -2). Substitute:

Answer: 249800
Step-by-step explanation:
Uhh you round it.