Which three macroeconomic variables together best describe the health of the economy?

In building an economic model, variables that are taken as given are referred to as ________ variables

A) exogenous B) endogenous C) concrete D) presumptive

A demand curve shows the relationship between price and quantity demanded, "other things remaining constant." The other things that remain constant include all of the following except the: a. price of the product

b. price of complementary products. c. price of substitute products. d. number of consumers in the demographic group purchasing the product.