2.3.1 Describe some patterns and examples of how age and sex ratio can vary across different regions.

i think the answer is a.

answer: in linguistic analysis, a phrase is a group of words (or possibly a single word) that functions as a constituent in the syntax of a sentence, a single unit within a grammatical hierarchy. a phrase typically appears within a clause, but it is possible also for a phrase to be a clause or to contain a clause within it.

explanation:

the correct answer is:

b. substitution property.

if the circle m is with inscribed ∠kjl and congruent radii jm and ml then m = ∠mjl = (kl) because of the substitution property.