Answer:
7.52 hrs
Step-by-step explanation:
Let the time taken to drive 504 miles be A
Given the driving is at the same rate
12 hrs = 804 miles
A hrs = 504
Cross multiply
A x 804 = 504 x 12
A x 804 = 6048
Divide both sides by 804
A x 804/804 = 6048/804
A = 7.52 hrs