Question

Select the correct form of the possessive for the underlined word(s) (Tuesday)

Tuesday meeting notes will be posted
Tuesday's
Tuesdays'
Tuesdays's
Tuesdays

Answer 1

It is Tuesday's

This is due to the word being both singular and possessive.

If it was plural and possessive it would be #3,

#4 isn't proper grammar

Finally, Tuesdays is just plural, not possessive