Answer:
The answer is: Detroit $196.87
Step-by-step explanation:
We first must add the cost of visiting the five cities:
Detroit $196.87
Pittsburgh $180.32
St. Paul $102.87
Cincinnati $155.81
Richmond $211.86
Total cost $847.73
Then we find what is the difference between the total cost and the road trip budget: $847.73 - $652 = $195.73
The cheapest city that Richard can drop is Detroit, by doing so his total expenses will be $650.86, which is below his budget.