Frank was training for a marathon. he ran 1,952 on day 1, 4,567 feet on day 2, and 7,568 feet on day 3. how many feet did frank run during his training?

So far, on his first 3 days of training, Frank has run

         (1,952-ft + 4,567-ft + 7,568-ft)  =  14,087 feet .

So far, in 3 days of training, Frank has run about 10% of the length
of one marathon.  He has a long wayda go.