I think a memo is a pronoun
Answer: yes
Explanation: women are wiser, organized and more careful with their choices.
Technology, easy communication methods that’s kinda all I can think about
1-4 look correct to me.
for #5, you are correct that to come is not a prepositional phrase because there is no object. If I were you, I'd leave it alone and keep the one next it. all others look correct.