Who was this great American? What were some of his works that we still use today? What about Washington D. C.? How does our entire community benefit from his legacy​

i believe it is capitalists.  

not sure might be he acquired the entire oregon territory from great britain

democracy

explanation:

brainliest means the answer that is best and you found it very

if you ask any question and 2 persons gave you answer for your question and the answer of one person you liked the most and found it most the we can mark it as brainliest . at the side of every person's answer an option of brainliet then we can appericiate the user by marking it as brainlist

if someone marks our answer as brainliest then we can get ranks also

done.