The 2021 demand and supply equations for aluminium in Canada are as follows: P = $ 100 - QD Can +Potts (1) P = $ 20 + 3Qs Can (2) where On www is the demand for aluminium in Canada by Canadian and Pottsvillian consumers and Qs Can is the quantity supplied by Canadian firms. In 2022, Pottsville will no longer purchase Canadian aluminium. The previous demand by Pottsvillians is given by is given by P =90 - 3 QD Potts (3) What are the economic effects in Canada in 2022? Price Original price (1 mark) Original output (1 mark) New price in 2022 (6 marks) New output in 2022 (6 marks) Original purchases (2021) by Pottsvillians (2 marks) Original purchases (2022) by Canadians (2 marks) 2022 purchases by Canadians (2 marks)