Answer:
15.4 gallons
Step-by-step explanation:
This can be solved using a proportion. Keep in mind that "[tex]mi.[/tex]" is miles and "[tex]g[/tex]" is gallons
[tex]\frac{14g}{380mi}=\frac{g}{418}[/tex]
Cross multiply.
[tex]380g = 5852[/tex]
Solve.
[tex]\frac{380g}{380}=\frac{5852}{380} \\\\g = 15.4[/tex]
Therefore, Adbul would need 15.4 gallons to drive 418 miles.