Final answer:
Sam and Lys will each drive 60 miles.
Step-by-step explanation:
To determine how many miles Sam and Lys will each drive, we divide the total distance by the number of drivers. In this case, they traveled 120 miles and shared the driving equally. So, we divide 120 by 2:
120 ÷ 2 = 60 miles
Therefore, Sam and Lys will each drive 60 miles.