Refer to cy math.com they have the answer
By adding 3 to both sides you get
-2 = s or s = - 2
36-8 is 28 which is Haruki's distance and his distance minus 3 is delilahs distance which is 25 meters
We have a right triangle
one leg is 2.4 in
the other leg is 7.4/2=3.7 in (radius)
the hypotenuse is
c^2=a^2+b^2
c^2=5.76+13.69=19.45
c=sqrt 19.45=4.41 in