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 week.

Number of days Number of Gas stations
3 12
6 24
7 28

To find out how many gas stations Ms. Smith drives by each week, we can calculate the average number of gas stations she drives by per day and then multiply it by the number of days she works in a week.

Average number of gas stations per day = Total number of gas stations / Total number of days
Average number of gas stations per day = (12 + 24 + 28) / (3 + 6 + 7)
Average number of gas stations per day = 64 / 16
Average number of gas stations per day = 4

Now, we can find out how many gas stations Ms. Smith drives by each week by multiplying the average number of gas stations per day by the number of days she works in a week.

Number of gas stations drive by each week = Average number of gas stations per day * Number of days she works in a week
Number of gas stations drive by each week = 4 * 7
Number of gas stations drive by each week = 28

Therefore, Ms. Smith drives by 28 gas stations each week.