Each of the following sentences has three errors in grammar, capitalization, usage, or spelling. Write a correct version

[answerhappygod]

Each of the following sentences has three errors in grammar,
capitalization, usage, or spelling. Write a correct version for
each sentence. Avoid adding new phrases, starting new sentences, or
rewriting in your own words.
7) In his justification report dated September first, Justin
argued that expansion to twelve
branch offices could boost annual revenue to 22 million
dollars.
8) The practicality and advisability of opening 12 branch offices
are what will be discussed in
the consultants feasibility report.
9) 3 categories of Apps (social media, productivity, and
entertainment—are most popular for
installing on smartphones.