Context:
How to cite an i statement<br>Cite the author's last name. In mla style, always use the author's last name in the in-text citation. This will help your reader to understand where your information came from.
Hypothesis: There may be other types of styles besides mla
It's impossible to say
Context:
How to start a sports blog<br>Decide how you want your blog to look. It's important to decide how you want your blog to appear, because in part this will determine how your blog is consumed. You might want a more visually-oriented blog, posting screenshots of scoreboards or photos from a game, for example.
Hypothesis: you cannot post photos from a game
No
Context:
How to choose a dog fence for your yard<br>Check local fencing regulations. Your community may have laws about the materials and sizes allowed for residential fences. Don't rely on a fencing company to know the regulations.
Hypothesis: Fencing companies will know the regulations your community has about materials and sizes allowed for residential fences. 

No