9. The owner of a small restaurant bought 50 kilograms of rice. Each week, the restaurant uses 2.5 kilo- grams of rice. Function R gives the remaining amount of rice in kilograms as a function of the number of weeks, w, since the rice was purchased. a. Complete the table. c. Sketch the graph. Amount of rice Weeks left (kilograms) 6 12 W Write a function rule to describe the situation. w) = kilograms of rice remaining 90 80 70 60 50 40 30 20 10 2 4 6 8 10 12 weeks