Content that ranks and content that converts are not different disciplines, they are the same piece written with both jobs in mind. We start from the query: what the person typing it actually wants, how much they already know, and what the page has to prove before they will act. The structure follows that, not a word count target.
Arabic and English are written separately. A translated page reads like a translation, uses phrasing nobody searches for, and rarely ranks. Writing each language natively costs more up front and is the only version that works.
Both, and natively in each. We do not translate one into the other, because translated pages read poorly and rarely match how people actually search.
From query research plus what your sales conversations reveal. The questions prospects ask before buying are usually the pages worth publishing first.
Yes, written for your business and checked for originality. Content rewritten from a competitor page ranks badly and reads worse.