Kathleen has been tracking how fast she walks over the last moth and determined that she walks 1 1/4 of an hour. Lynn has been tracking how fast she walks over the past few weeks and determined that it takes her 19 min and 12 seconds to walk one mile. Write Kathleen's and Lynn's walking rate in the same format.

3 answers

.... she walks 1 1/4 of an hour.

Huh?
Part B: Give a logical argument on why that format was chosen over the other three.
I don't know the answer