graphical models

5. The city roads department ordered 2000 m3 of sand to use on the roads during the winter. The volume of sand at the end of each week is shown: Week Volume of Sand 0 2000 1600 1250 825 UI AWN 450 0 I a) What happens to the volume of sand remaining as the weeks progress? Circle the correct answer: Increasing Decreasing [1] b) Create a scatter plot of the data. [3] c) Add a line of best fit to the graph. [1]