Answer:
Step-by-step explanation:
The first choice is correct
The rate is 20 per dog, thus we get the equation:
c= 20d
However the first dog is free, so the equation becomes
c = 20(d - 1)
And he also has a walking fee of 85 dollars and thus the equation becomes
c= 85 + 20(d-1)
Answer: 62.83in
C= 2(3.14)(10)
C= 20(3.14)
C= 62.831853071796
0.34
pretty sure its D