Hello I need help with the following questions:

Question 1:

The spending of the households, businesses and the government in the Banana Republic is expressed as: C = 100 + .80Y, I = 100, and G = 300. The household's saving in the republic (S) is The spending of the households, businesses and the government in the Banana Republic is expressed as: C = 100 + .80Y, I = 100, and G = 300. The household's consumption in the republic (C) is The spending of the households, businesses and the government in the Banana Republic is expressed as: C = 100 + .80Y, I = 100, and G = 300. The equilibrium income of the republic is