A. (Displacement is the distance with direction that means it is a vector quantity. Here we are taking the home to grocery store +5 then grocery store to home -5) 5 - 5 = 0 Here the displacement is zero.
B. Distance is 10 miles
C. Velocity = displacement/time = 0/30 = 0 mile/min
D. Speed = distance/time = 10/30 mile/min = 8.94 m/s
