Answer:
To change 80 ounces to grams using the given graph, locate the value of 80 on the x-axis (ounces). Then, follow the corresponding line up to the curve and from there, move horizontally to the y-axis (grams). The point where the line intersects the y-axis gives you the value in grams.
Based on the graph, the value of 80 ounces is approximately 2,268 grams.