Answer:
-0.2
Step-by-step explanation:
Slope (m) =ΔY/ΔX= 8-(-2)/-3-(-1)
= -1/5
= -0.2
18.50 = total
4.07 = tip
18.50 + 4.07 = 22.57
72.25663
C=2πr=2·π·11.5≈72.25663
-74.1, is the answer.