Answer:
Total Distance = 24 miles
Explanation:
The attached picture shows the 4 locations in the coordinate grid.
- Margarite went from home to supermarket, then
- supermarket to municipal, then
- municipal to post office, then
- post office to home.
Looking at the picture, it should be clear the distance for each "leg" of her journey. Below we write the distances:
- home to supermarket: 7 units
- supermarket to municipal: 5 units
- municipal to post office: 7 units
- post office to home: 5 units
Total distance =
units
Each unit is 1 mile, hence total distance = 24 miles