Answer:
8
Explanation:
It looks like the graphs show the amount of money paid by Jim and Carlos as a function of the number of hours they rent the skateboards. The x-axis shows the number of hours, and the y-axis shows the amount of money paid. From the graph, it appears that Jim and Carlos pay the same amount of money for the skateboard rentals after 8 hours. At this point, the line for Jim's payments and the line for Carlos's payments intersect, so the answer is {8}.