Someone please help me I’ll give out brainliest please dont answer if you don’t know

Answer:
[tex]12.5(x + 20) = 460 \\ x + 20 = 460 \div 12.5 \\ x + 20 = 36.8 \\ x = 36.8 - 20 \\ x = 16.8[/tex]
Hence, 16.8 miles is your answer