If the demand for macaroni and cheese decreases as income increases, macaroni and cheese is a(n)

If the economy is growing 5% a year and GDP is $1000 billion, the additional revenues available to meet interest payments on the government deficit would be, ceteris paribus,

A) 50. B) 500. C) It depends upon the amount of new debt issued. D) There would be no additional revenues.

Around the year ______, growth in the world output per head accelerated sharply.

A. 1350 B. 1500 C. 1650 D. 1800