How old was abraham lincoln when he was elected president?

Iwant to be an engineer but cant do math for the life of me, but i also want to be a cop. "what should i do"

All of the following were weaknesses of the articles of confederation, except: a) the central government was not permitted to regulate state, interstate, or foreign trade. b) the central government was not permitted to borrow money. c) the central government had little ability to regulate money. d) the central government had no ability to tax.

How influential do you think athenian democracy was on our representative democracy in the united states?