Answer:
55.4068881439
Step-by-step explanation:
Lets first find the feet they walk per day, multiply the steps by the feet/step:
[tex]10,388*2.5=25970[/tex]
Now lets find the feet/week by multiplying that value by 7:
[tex]25970*7=181790[/tex]
Now lets convert the feet to km:
[tex]181790/3281=55.4068881439[/tex]
Resulting in approximately 55 kilometers