A because all of the other ones are weong
Answer: 
Step-by-step explanation:

Divide by 23

Extract the square root.

Answer:
4
Step-by-step explanation:
h(7)= 7²-1= 49-1= 48
f(h(7))= 48/3 -12
= 16-12
= 4
The anwser is 10,000 drops 1000 multiplied by 10 gives you the anwser
<h3>
Answer: 1260</h3>
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Work Shown:
n = number of sides = 9
S = sum of the interior angles of any polygon with n sides
S = 180(n-2)
S = 180(9-2)
S = 180(7)
S = 1260