It is b.the residents of the town
Answer:

Step-by-step explanation:

The words that can be used as subjective pronouns are they and you
<h3>How to determine the words?</h3>
From the question, the word category is:
subjective pronouns
By definition, these are pronouns that can be used as a subject
In English, the subjective pronouns are I, you, he/she/it, we, you, they and who.
Hence, the words that can be used as subjective pronouns are they and you
Read more about subjective pronouns at
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Add all of them then subtract from 180
Let x be the original radius. Given that a semicircle will have an arc length of half of a circumference and C=2pr, the arc length will be just pr.
Now the difference of arc is then going to be:
p(6+x)-px
p(6+x-x)
6p inches
So the arc will be 6p inches longer. Or if you wish to approximate...
≈18.85 inches