Respuesta :

Answer:

504 miles

Step-by-step explanation:

Make a proportion

[tex]\frac{864}{12}[/tex] = [tex]\frac{x}{7}[/tex]

7/12 is 0.5833, so multiply 864 by that to find the number of miles

864(0.5833) = 504

Isabel drove 504 miles in 7 hours