If you want to keep it technical, the normal “/unit rate” for running is minutes per mile. You can use dimensional analysis like I did below to find the answer. You should get 11.45 min/mile or about 11 min 25 sec per mile
For all of these problems, make equation into slope-intercept form to be able to see what the slope is.
answer to 1.d. is neither

So... none of your answers are correct. The correct answer is
21/2.
Answer:
probably 2/4 try it I don't know