Math Help - Help with Matrix Problem

1. Help with Matrix Problem

Hi, I'm having trouble with this homework problem. Any help would be appreciated. The numbers are in the attachment

7.
Find the consumption matrix A and demand vector D0 for this table.
8.
Find the production vector X for the consumption matrix A and demand vector D0.
9.
If the demand for construction increases by 1 million, how much will the production of the transportation, communication, and utilities sector have to increase to compensate?
10.
Which three sectors are most affected by an increase of $1 million of demand for construction? 11. If the entire jth column of the matrix (I - A)-1 is added, the result is the amount of new production in the entire economy caused by an increase of$1 million in demand for the jth sector. How much new production is produced in the entire economy by an increase of \$1 million in demand for construction?
12.
What would it mean for the (i, j) entry in (I - A)-1 to be zero?