A) how long has coastel erosion been a issue

While coastal erosion affects all regions of the United States, erosion rates and potential impacts are highly localized. Average coastline recession rates of 25 feet per year are not uncommon on some barrier islands in the Southeast, and rates of 50 feet per year have occurred along the Great Lakes

the graph shows the price of a good compared to the quantity supplied.

this graph demonstrates how

    [d]:   " the amount consumed greatly changes with the price. "

7.03-1.70=5.33 and 6.80+5.09=11.89 and 5.5-3.01=2.49