In at least 2 complete sentences why a traveler will need to visit a currency exchange, include how exchange rates are determined (don't use goo gle, or at least paraphrase if u do)

Hay's policy concerning trading rights in china was the: a. protectionist policy b. open-door policy c. square deal

Mark each statement if it describes the roman empire at its height. choose all answers that are correct. a-the empire stretched from spain to assyria and from north africans great britain. b- there was several official languages in the vast roman empire. c- a series of roads unified the roman empire. d- set legal principles and respect for the governed unify the roman empire. e- a single currency was established to facilitate trade within the empire.

Iknow this lets see if you do i am 6 my sister is half my age, now i am 60 how old is my sister