George works at a grocery store. He has been asked to set up a display of cans 8 layers high and 6 cans deep. The bottom layer will be 20 cans wide, the next 18 wide, then 16 wide, and so on. a) Determine the number of cans in the first 3 layers. (2 marks) b) Develop a formula to calculate the number of cans in n layers. (2 marks) c) How many cans are there in the display of 8 layers? (1 mark)

George works at a grocery store. He has been asked to set up a display of cans 8 layers high and 6 cans deep. The bottom layer will be 20 cans wide, the next 18 wide, then 16 wide, and so on. a) Determine the number of cans in the first 3 layers. ( 2 marks) b) Develop a formula to calculate the number of cans in n layers. ( 2 marks) c) How many cans are there in the display of 8 layers? (1 mark)