In retaliation for the actions of the united states concerning its support of israel, in 1973 opec countries ceased exporting oil to the united states. which term refers to one nation or group of nations isolating another nation by stopping trade?
a) blockade
b) boycott
c) embargo
d) quota

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)

for this case we have the following equation:

we apply distributive property to the terms within parentheses.

subtracting 2 on both sides of the equation: