the answer for 1 is 3.6, 2 is 4/00, 3 is 1.367, and 4 is 4567937468436
Answer:
sss(personal opinion)
You should be able to set up a proportion between the sides something like (18+x)/x=(56+21)/56
The slope of the line is 2.
This means that Jan runs 2 laps every 1 minute.
