no spaces
No. You put only one period.
I was taught it was two. A good way to remember this is by counting the dots on it. The colon has two so it has two spaces. A semi colon has only one dot, and it has only one space after it. But this only applies when the name of the punctuation has the word "colon" in it, as when you are counting the dots in a period, you only see one, but after a period, you usually put two spaces unless you are using a wesite address or something of that sort.
Put one space after a comma.
How many days does the month of September have? Enter the number, and put a period after it.:
How many days does the month of September have? Enter the number, and put a period after it.:
We put the period after the word Mr because it's an abbreviation for Mister.
No. You put only one period.
Yes, it is common to put a period after "Mrs." as it is an abbreviation for "missus."
Yes you should always use a period.
no just 1
No, you do not need to add an additional period at the end of a sentence that already ends with an abbreviation like Oct. The period from the abbreviation serves as the ending punctuation for the sentence.
No you do not. Info. is an abbreviation and therefore requires a full stop
No, you do not include a second period when a sentence ends with an abbreviation like "MD." Just one period is used to end the abbreviation and the sentence.
No, typically you do not need to put a period after "Ave" when using it in a sentence. However, if "Ave" is being used as an abbreviation for "Avenue" in an address, then a period would be used after it.
Do you put a period after a stated when it is abbreviated in an address?
No, but you need to capitalize it. You put a period after Mr. because it is short for Mister. You put a period after Mrs. because it is short for Missus. But Miss is already a short word so doesn't need an abbreviation.
you need at lest 4 spaces.