Zikr and Dua After Salaah

Correct tasbeeh after salaah

Q: What is the correct zikr to recite after each salaah

1. 33x SubhanAllah

33x Alhumdulillah

34x Allahu Akbar

Or

33x SubhanAllah

33x Alhumdulillah

33x Allahu Akbar

1x Laailaaha illallahu wahdahu La sharikalahu lahul mulku Walahul humdu wahuwa ala Kulli shayin qadeer.

I am confused as I understand both are mentioned in the hadith. Which is the correct zikr to recite after each salaah.

Inaudible Dua after Salaah

Q: I would like to know the ruling concerning dua after the congregation in the masjid. Should it be done audibly or should it be done inaudibly. Some people take offence at the fact that in certain masjids the day after congregation is made inaudible and they feel that because it is a congregation we should make the dua are similarly for everybody in an audible voice.

Durood Shareef after Salaah

Q: After fard prayer, do you have to send salutation on Muhammad (Sallallahu Alayhi Wasallam) by reading the durood shareef? Every masjid do that but when I am doing research, in no place it is mentioned that after fard prayer, you have to send blessings on Muhammad (Sallallahu Alayhi Wasallam) (i.e Allahumma swaliraswayyidinamuhammadinwwaralaalimuhammadinwwabaarikwasallim)? Or is it that they do this because they make the congregational dua after that because durood should be recited before making dua? According to my knowledge, after fard prayer, you have to read ayat ul kursi, tasbeen e fatihi and make your own dua and some but this recitation of durood is confusing.