Plz i will upvote

what is a common benefit of writing and the wheel?

a. both allowed for city planning.
b. both made trade easier.
c. both made mathematics possible.
d. both were necessary for architecture.

a u.s. citizen has to have lived in and been an american citizen for a year or more be for he or she can vote for presidential or country wide elections. they also have to register to vote. if the voting is for state representatives or issues, they have to have lived in that state for one month or more and meet the requirements for country wide elections.

the viking voyages took place during the middle ages, which was about this time. 500 to 1350. the viking voyages took place during the middle ages, which was about this time.