Final answer:
Without additional context or information about the travel schedule or starting day, it is impossible to determine the exact day of the week the car would arrive at Connie's house.
Step-by-step explanation:
To answer the question "On what day of the week does the car arrive at Connie's house?", more context or information is needed. Specifically, we would need to know the starting point or conditions related to the travel schedule of the car. For example, if the car started traveling towards Connie's house on a Tuesday and it took 3 days to get there, the car would arrive on Friday. However, without such information, it is impossible to determine on which day of the week the car arrives at Connie's house.