The direct exchange of one set of goods or services for another
a. barter
b. inheritance
c. tax refund
d. monetary purchase

The sixth amendment of the u. s. constitution guarantees the right to which of the following?

What religion influenced the first persian empire as established by cuyrus the great?

How did inca develop their road system? a) they used mortar to hold the stones together. b) they built suspension bridges over rivers. c) they mixed copper and stone together to make the blocks. d) they laid roads in the cities, not in the less densely populated deserts.