Jess and Nate are married teachers. They keep individual budget charts of their graduate school education–related expenses for tax purposes. The charts below are for the fall semester.

a. Let matrix J be a 5 x 4 matrix consisting of Jess’s expenses. Write matrix J.
b. Let matrix N be a 5 x 4 matrix consisting of Nate’s expenses. Write matrix N.
c. What would N + J represent? Calculate N + J.

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Jess's Expenses Category Tuition Supplies Transportation Textbooks Fees Nate's Expenses Category Tuition Supplies Transportation Textbooks Fees September $2,400 200 120 100 60 September $3,000 150 200 300 75 October $2,400 0 120 0 60 October $3,000 50 200 60 75 November $2,400 200 120 80 60 November $3,000 0 200 0 75 December $2,400 0 120 0 100 December $3,000 0 200 0 75