with one period. "It weighed 15 lbs. That's about 7 kg."
but i suggest writing the word "pounds" out in that case, for only 3 extra letters it will be much clearer and cleaner looking.
At the end, after the last word, to show that the sentence was a statement.
No, you do not need to include an additional punctuation mark at the end of a sentence if the last word already ends in a period.
Before is a preposition, so it's grammatically incorrect to use it as the last word in a sentence.
have it rhyme with the LAST word in the sentence above or the second sentence above it.
No the period is straight after the last word.
There are several problems with the sentence: I will love untel the last end. First, it lacks an object -- I will love (who or what?). Second, the word is spelled until, not untel (not a word). Third, the phrase "last end" is repetitive and redundant. You only need to say one-- or the other. If you use "last", you need a noun that it describes. I will love him until the end. I will love you until my last breath,
Yes. There is no English word that cannot end a sentence.
We will have to curtail our spending so the funding will last to the end of the year.
noA sentence cannot end with the word "the". Hmmm, wait a minute.
The word "incidentally" can be used at the end of a sentence. You can make the sentence "This was done incidentally.".
No, periods at the end of a sentence do not count as a separate word. They are punctuation marks used to indicate the end of a sentence.
No, typically a comma is not used before the word 'please' when it is the last word in a sentence. You can simply end the sentence with 'please' without a comma.