Carl has limited amount of money. he must decide whether to spend some money to go out to dinner with friends or save it by staying at home. what is this an example of ?

a. opportunity cost
b. variable rates
c. taxation benefits
d. recession mentality

What happened to the american economy after world war i?

Based on the trends shown in this chart, which of the following predictions best tell about the u.s. population in 2020? (3 points) i. more than half of the u.s. population will live near an interstate highway. ii. less than one-quarter of the u.s. population will live in urban areas. iii. more than half of the u.s. population will live in suburban areas. i only iii only i and iii only ii and iii only i, ii, and iii

The most influential immigrant group in texas came from