Please work out the problem and don't do it in excel, that would help tremendously. Thank you in advance

The AB manufacturing company has two kinds of products: A and B. They earn $180 profit for each Product A and $90 profit for each Product B. To produce Products A and B, the company needs three resources: Q, R, S. Each unit of Product A consumes 6 units of Resource Q and 2 units of Resource R. Each unit of Product B consumes 8 units of Resource Q and 3 units of Resource S. The AB manufacturing company only can use 48 units of Q, 12 units of R and 12 units of S per day. Resource Product A Product B Resource Available Q 6 8 48 R 2 0 12 S 0 3 12 Profit per unit 180 90 (10 points) How much can you increase / decrease the resource level of Q while the current optimal solution stays optimal? (10 points) How much can you increase/decrease the resource level of R while the current optimal solution stays optimal? (10 points) How much can you increase/ decrease the resource level of S while the current optimal solution stays optimal