Final answer:
Sobia and Tanya should meet at the geographic halfway point between their homes by calculating the midpoint which is equidistant from both locations.
Step-by-step explanation:
If Sobia and Tanya are looking to meet at the halfway point between their homes, they should find the geographic midpoint. This halfway point is determined by identifying the distances from each home and then finding the exact middle distance between the two. Since they are meeting in a centralized location, Sobia and Tanya would each travel half the total distance between their two homes. To determine this mathematically, they could add the distance from Sobia's home to the meeting point and the distance from Tanya's home to the meeting point, and the sum should equal the total distance between Sobia and Tanya's homes.