Ok when it says it decreases by 8% each year this means that it’s 8% less each year or 92% of the previous year so 92% of 4,375 is 4,025 and then 92% of that is 3,703
The (x, y) value that is the solution to the system is the point that is on both lines. That point is the point where the lines intersect. The coordinates can be read from the graph as ...