Teenage Research Unlimited, a market research firm in Northbrook, Ill., projects that the 31.6 million Americans from ages 12-19 will spend $108 billion of their own money in 2000, along with $47 billion of their family's funds. They also account for a disproportionately large share of consumer spending. Households with one or more teen-agers spend $10,000 more per year than those without any. And with parents working more than ever before, teens have assumed greater influence in household decision-making.

What is the central idea of this passage?

A. Market research firms are interested in what teen-agers have to say.
B. In families with working parents, teen-agers affect decision-making.
C. Teen-agers account for billions of dollars of consumer spending every year.
D. Households with teen-agers spend more than those without any teen-agers.

the answer would more than likely a.)falling crop prices  

hope the answer is right and ,either way have a nice day.

d. because in realality people do wanna buy things and when an item is sold alot the makers make the price least   thats what my gut saya lol

the system of checks and balances is very important to the us constitution. it makes sure that all three branches of government have limited power. that they do not have too much power. with this system they can limit the amount of power that each one has. that way no branch becomes too powerful.

an example of this is how the executive branch can veto bills from the legislative branch but the legislative branch can still override that veto. the name checks and balances come from the power for one branch to check the   power of another branch to make sure that everything is balanced between all three.

i hope this