Who’s the oldest president

The oldest person to assume the presidency was Joe Biden, who took the presidential oath of office two months after turning 78.

President Joe Biden

Explanation:

The oldest person to assume the presidency is Joe Biden because he took the presidential oath of office two months after turning 78.

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.

the answer for 3 is b and the answer for 4 is d