Its started after World War 2 because after a lot of issues arose between the US and USSR. They had a mutual distrust with each other stemming from the way the US had perceived the USSR as an illegitimate part of the international community. The way the USSR perceived the US as people who intervened in everyone's business and had amounted weapons.
Taxation can help the activities of a particular group in the sense that they limits competition or encourage it whether it is a producer or consumer groups.
tax expenditure amount to subsidy because they lead to exemptions or deductions and reduction of credits targeted to a particular or specific group, for example medicare.
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1. x-3 = -2x + 1 , so we can get x = 4/3
2. y = x - 3 = -5/3
3.The coordinates would be C (4/3, -5/3)