Okay ... just checking on how to figure this ... Here is the problem: Some researchers estimate that humans walk about 10,000 in their lifetimes, on average. Assume that the average life span is 70 years.

a) about how many miles per year does the average person walk?

would you divide 10,000 by 70? ..

thank you for your help ..

Yes. Divide 10,000 by 70.