Answer: 297 miles
Explanation:
Given: The distance Mrs. Wong drove last month = 2,376 miles
Also, the number of times she drove Between Chicago and St. Louis= 8
Therefore, the distance from Chicago to St. Louis =

Thus, the distance from Chicago to St. Louis =

⇒ The distance from Chicago to St. Louis =

Hence, The distance from Chicago to St. Louis is 297 miles.