Question 3 here is what I need help with. Especially the identity matrix in part c. Thank you!

Sales to: Purchases from: Intermediate Agriculture sectors Manufacturing Services Primary Imports inputs Wages Other value added Total input Intermediate sectors Final demand Agriculture Manufacturing Services Households Exports Total output 0 300 550 500 100 400 0 100 800 700 500 300 0 300 0 250 500 50 200 500 300 100 400 100 3) (10 points) Excel Model: Be sure to upload your excel file into e-learning to get full credit for this problem. a. Calculate the total output and the total input in the table you created in excel using formulas. (Hint, use the sum function in excel) b. Create a 3