Trista is trying to decide how to spend her money. she adds and subtracts by a dollar to determine which combination of expenses will offer her the greatest benefit. tristaís decision making process is an example of which of the following?

i. thinking on the margin
ii. analyzing costs and consequences
iii. economizing her decision
a.
i only
b.
i and iii only
c.
ii and iii only
d.
i, ii, and iii

Of the following choices, which ones are characteristics of west african society? select all that apply. a. arabic was the main language used when trading with other societies. b. christianity was the only religion practiced in villages. c. slaves had no rights and were only given specific farming tasks. d. skilled workers were a higher level in the caste system than traders. e. religious rituals encouraged the honoring of ancestors.

In the years after world war ii, which of the following caused many people from asian and african countries to migrate to europe? a. the end of the soviet union b. new economic opportunities after colonialism ended c. the religious freedom found in europe d. new laws allowing greater numbers of immigrants into european countries

Why did lincoln inform the confederacy that he would not e sending troops or weapons as food supplies were sent to fort sumter?