Final answer:
Simone traveled a total distance of 20 miles + 2x miles.
Step-by-step explanation:
The total distance Simone traveled can be found by adding up the distances of each trip. On Saturday, she drove 10 miles to the flea market and 10 miles back, so she traveled a total of 20 miles on that day. On Sunday, she made 2 trips from home to the mall and back, so she traveled a total of 2 times the distance from home to the mall. Let's say the distance from home to the mall is 'x' miles. Therefore, on Sunday she traveled 2x miles. Adding up all the distances, the total distance Simone traveled is 20 miles + 2x miles.