Yes; there are none.
Dashes are used to extend a sentence and add additional information.
Yes - dashes can be used to set off or emphasize specific information within a sentence. They provide a more abrupt pause than commas, drawing attention to the enclosed text. Just ensure to use them correctly to avoid confusion in your writing.
The nouns in the sentence are dashes and races.
Each tent can shelter 2-4 people - if you don't mind cramped quarters.
Parentheses are used in a sentence to capture a note relating to the wording of the sentence. Dashes and commas set apart words in a sentence.
Roland glanced over his shoulder - John was following him!
Dashes are used to rename a noun and to put important information in an attention-grabbing position within a sentence. It may also set off background information that is necessary for overall knowledge of the topic. In a complex sentence, dashes may help to improve the flow.
Dashes can be used to indicate a stronger break in a sentence compared to commas. They are often used to set off information that is somewhat abrupt or surprising, or to emphasize a point. Dashes can also be used to create a more informal or conversational tone in writing.
The word "looked" is a correctly used modifier in the sentence.
Dashes are used with the same function as commas, and are usually used with a sentence that already contains commas. Example: The whole list, which my mother put together, consisted of a lot of items - food, clothes, accessories, utensils, and games - that were necessary for our trip and essential to the success of the journey.
I think that the above sentence used in this term, is correctly used in this way.
In the sentence, It's up to you to decide, It's is used as a contraction for It is. It's used correctly here.