No.
No. It is not a contraction but a phonetic rendition of a slang or dialectical pronunciation of the words "got to".
The correct spelling is apostrophe.
You should probably be concerned with spelling proficiency before delving into the intricacies of when to use an apostrophe.
The spelling Hessian's is a possessive (has an apostrophe S).You would use this to describe a Hessian, such as a Hessian's uniform.The plural of Hessian is Hessians.
Yes and it should also have s after the apostrophe. Pele's jersey
The possessive is campus's.The possessive of a singular noun can always use apostrophe-S. It is only when the plural is formed by adding S or ES that the apostrophe only is used (e.g. campuses becomes campuses').
you dont use an apostrophe in will not
you do not use an apostrophe in cultures.
The spelling its is itself the possessive. The word does not use an apostrophe.The spelling it's is a contraction for "it is" and should not be used as the possessive.
It's is a contraction of it is. - It's pretty. Its is possessive. - Its leg is broken. (much like his, hers, or theirs, there is no apostrophe.) It's is a contraction of 'it has' - It's got big teeth.
The correct spelling of the holiday is "Boss's Day." It is spelled with a double s after the apostrophe to indicate possession by the boss. This is the standard way to show possession for singular nouns ending in s. It is important to use the correct spelling to show respect and professionalism when referring to the holiday.
Although we used to use apostrophes to indicate a series of years, the current convention is to drop the apostrophe and write a decade as a simple plural, like 1980s. The argument for changing this practice was that the added apostrophe created an incorrect possessive.