a. The total distance from home to the store and back home covered by Robert is 400 meters (200 x 2).
b. The total distance from home to the library and back home covered by Robert is 600 meters (300 x 2).
c. No. By walking 400 meters to and from store and 600 meters to and from library, Robert has walked 1,000 meters (600 + 400), which is equal to 0.62 miles.
What is a mile?
A mile is a unit for measuring distance. It is equivalent to 1.609 kilometres. A mile is also equal to 1,760 yards.
Data and Calculations:
Distances from home to four difference places are assumed as follows:
To school = 350 meters
To church = 240 meters
To store = 200 meters
To library = 300 meters
Thus, for Robert to walk a mile, he needs to cover 1,609 meters.
Learn more about the difference between a mile and a kilometre at https://brainly.com/question/25756854
