Final answer:
The trend of Americans living in urban settings has been increasing over time. It is likely that the percentage of people living in urban settings in 2030 will continue to increase.
Step-by-step explanation:
The graph shows the percentage of Americans living in urban settings from 1790 to 1990. From the data, we can see that the trend has been a continuous increase in the percentage of people living in urban settings over time. As of 2000, the percentage was above 80%. Since the trend has been consistently upward, it is likely that the percentage of people living in urban settings in the year 2030 will continue to increase. While we cannot determine the exact percentage, it is reasonable to expect the number to be higher than 80%.