Which agreement was signed in 1944 with the purpose of creating a new international payment system?

Suppose the United States spends more on foreign goods and services than foreigners spend on our goods and services and the United States sells no foreign assets. Then the

A) United States must borrow an amount equal to national saving. B) United States must borrow an amount equal to imports minus exports. C) rest of the world may or may not finance the U.S. trade deficit. D) United States must borrow an amount equal to consumption expenditure plus investment.

Arturo runs a Taco Bell franchise. He is selling 250 Gordita Supremes per week at a price of $2.75. If he lowers the price to $2.70, he will sell 251 Gordita Supremes

What is the marginal revenue of the 251st Gordita Supreme? If selling the extra Gordita Supreme adds $0.20 to Arturo's costs, what will be the effect on his profit from selling 251 Gordita Supremes instead of 250?