That seems so hard, sending prayers and brain cells to you.
Answer:
C≈6.28mm
Step-by-step explanation:
C=2πr
= 2·π·1≈6.28319mm
x+y=17000 (x.7+y.15)/100=2000 (7x+7y)+8y=200000. 8y=200000-17000.7 y=61.5.5.5 17000-y=9375=x x=9375
Answer: Sally walked 3 minutes faster per mile
Hope it helped!
It would be =-5f
Hope this helps