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 Banana Republic's government decides on taxing the households at the amount of T = 200. All other assumptions are the same as above. How much spending by the government of the Republic will increase the Republic's GDP by 500? 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 Banana Republic's government decides on taxing the households at the amount of T = 200. All other assumptions are the same as above. At the new equilibrium, the national saving of the Republic 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 Banana Republic's government decides on taxing the households at the amount of T = 200. All other assumptions are the same as above. \\t the new equilibrium, the public saving of the Republic is