Pls help i don't understand this

Which best describes the idea behind the "invisible hand"? producers decide what to make for consumers, which guides the economy. individuals seeking their own self interest benefit the economy as a whole. government sets policy for producers and consumers, which guides the economy. consumers decide what they need and want to buy, which guides the economy.

In 1990, the average income for an american worker was $1,518 per month. in 2000, the average income for an american worker was $2,632 per month. during this time period, a basket of necessities (food, housing, etc.) increased from $657 per month in 1990 to $1,402 per month in 2000. the real value of income ▼ increased decreased over that 10-year period.

Select the correct answer. what was one of the conditions that iraq had to fulfill at the end of the persian gulf war? a. iraq would allow inspections for weapons of mass destruction in the country. b. iraq would accept un peacekeeping forces inside its borders. c. iraq would not attack any other neighboring country. d. iraq would pay for the costs of war damages.