After Maria and Tatsuo are divorced, their 2 minor children continue to live with Maria. Pursuant to their divorce decree, Tatsuo pays Maria $1,000 per month in child support and $1,800 per month in alimony. The divorce decree specifies that in the event of a court ordered increase in child support, the alimony payment amount will decrease by the amount of the child support increase. That is, Tatsuo’s total monthly payment cannot exceed $2,800. Determine how much gross income Maria has from the payments received from Tatsuo.