For the past month, Ms. Smith recorded the number of days she went to work each week and the number of gas stations she drove by during those days. How many gas stations does she drive by each day?

3 days equal 12 gas stations passed
6 days equal 24 gas stations passed
7 days equal 28 gas stations passed
Ms. Smith drives by[ ]gas stations each day.

4 gas stations each day.

To find the answer, just calculate the total number of gas stations (64) divided by the total number of days (16) which equals 4 gas stations per day.