Which one of the following separates two complete sentences joined by and, but, for, nor, or, so, and yet?

What does the word subordinate mean in this sentence? the office manager spoke to her subordinate in a cordial tone.

Use morphology and syntax to make grammatical sense of the following sentence (mark all that the ova of all mammals except the monotremes undergo holoblastic segmentation. the -s inflection indicates that monotremes is a plural noun. the suffix -ic indicates that holoblastic is an adjective. the suffix -ation in the word segmentation is a noun-forming suffix denoting a process. the -s inflection indicates that monotremes is a possessive noun.

Pls needs hypehen or no hyphen 1. after serving as principal for ten years,mr. jones will resign this year 2. it's sixty seven degrees outside and it's only february!