Answer:
The answer is C) 3x + 12
Step-by-step explanation:
To simplify this, start by distributing the 3.
18+3(x-4)+6
18 + 3x - 12 + 6
Now combine terms
3x + 12
234567
3.14x7.6=23.864 because raidus is the disctance around one circle
I think the answer is 2 dollars