The graph shows how many square feet of Gilly's garden she was able to landscape over the course of a week. According to the graph, approximately how many days did it take Gilly to plant 450ft.2 of her garden?

Based on the graph, Gilly was able to landscape 400ft.2 of her garden in 4 days. Therefore, it took her approximately 4.5 days to landscape 450ft.2 of her garden.