Hi there!
So we know for a fact that she lives 14 miles away from home.
In a day :
1. She leaves her house in the morning to go to work = 14 miles
2. She leaves work to go back to her house for lunch = 14 miles
3. She leaves her house after lunch to go back to work = 14 miles
4. She leaves work at the end of the day to go back to her house = 14 miles
In a day, she drives 14 miles 5 times.
14 × 5 = 200 miles per day
Whe want to know how many miles she drives to and from work in 5 days, which means that we need to multiply the number of miles she drives in a day by 5 :
200 × 5 = 1000 miles
Your answer: Sandra drives a total of 1000 miles to and from work in five days.
There you go! I really hope this helped, if there's anything just let me know! :)