The annual revenue of Amazon over the period 2006-2010 can be approximated by a ( t ) = 2 e 0.25 t b i l l i o n d o l l a r s p e r y e a r ( 6 ≤ t ≤ 10 ), where t is the time in years since the start of 2000. Find an expression for the total annual revenue A ( t ) earned since the start of 2006, and use it to estimate the total revenue earned from the start to 2006 to the start of 2009. Round answer to the nearest $ billion. Do not include a dollar sign with your answer below. Hints: A ′ ( t ) = a ( t ) and A ( 6 ) = 0. Why?

net worth is the difference between what you own and what you have. if you exceed your liabilities you have a positive net worth. if your liabilities are greater than your assets you have a negative net worth. its a snapshot of your financial situation. if you calculate your net worth you will see the end result of everything you've earned and spent as of now. net worth statements and all you asked of can you determine where you are, how to get where you want to be, if your spending   to much. honestly it can tell you a lot of things. i can go on, but you can paint the picture from here.

explanation:

answer; closing the loop;

answer: marginal utility of the fourth brownie is 0.

explanation: marginal utility is the addtional utility gained from the consumption of one more unit of a good. it is given by,

so, marginal utility at the 4th unit will be given by

since, the values are not given here, you can simply find marginal utility at fourth unit by subtracting total utility at 3rd unit from total utility at 4th unit.