Physics! Question 4! How do I find the coefficient of linear expansion for this metal? THANK YOUU!

Answer:
α = 2.81×10⁻⁵ /°C
Explanation:
ΔL = L₀ α ΔT
α = ΔL / (L₀ ΔT)
α = 0.054 cm / (25.000 cm × 77°C)
α = 2.81×10⁻⁵ /°C
Answer:
0,007mm/°C
Explanation:
had to think for a while but I am quite sure it is that.