Have been lived I really have no idea how the mistake in the first place. *

نقطة واحدة

every person should make it a priority to serve at least two hours per week.

it's an extremely important civic responsibility that is invaluable to citizens most in need is the correct one

assuming the underlined word is "regnant", the correct answer is b) ruling.

answer: dinner and a movie with your friends this saturday night.

opportunity cost refers to the benefits that a person or business misses out on when choosing one alternative over another. opportunity costs are easy to miss, but they can be important for decision-making. in this example, the alternative that the person will miss out on is the opportunity to have dinner and watch a movie with friends on saturday, as he will have no money left after buying the cd.