Economics Homework Help

these are the 2 questions I need help with,

Question 1 : The data you go over it on discussion 1 (table 17) show the following information on 2019 for Saudi Arabia:

• National income equal 2,639,811,458,556 SAR.

• Consumption equal 942,020,123,311 SAR.
• Government expenditures equal 537,154,659,558 SAR.
• Export equal 1,179,770,640,555 SAR.
• Import equal 747,755,203,245 SAR

Solve the following:

• National saving.
• Investment.
• NCO

Question 2 : According to table 17 you took on discussion 1; the first quarter of 2018 for Saudi Arabian economy show the following:

• GDP is 648,493,656,299 SAR
• consumption is 224,699,482,038 SAR
• government expenditure is 136,078,506,917 SAR
• export is 298,052,510,955 SAR
• import is 168,358,599,175 SAR.

Calculate investment.