In 2004, the average of the per capita (per person) incomes for Massachusetts and Maine ...

In 2004, the average of the per capita (per person) incomes for Massachusetts and Maine was $36,500. The per capita income in Massachusetts exceeded the per capita income in Maine by $11,000
A-) Set up a system of equations whose solution gives the per capita income in each state. Identify what each variable represents.
B-) Use substitution to solve this system. Interpret the result.
C-) Use elimination to solve this system.
D-) Solve this system graphically, Do all the answers agree?