A city has streets that run north and south and avenues that run east and west all equally spaced Streets and avenues are numbered sequentially as shown in the figure The walking distance between points N W E 1st St 3 blocks 2nd St 4 blocks 5th St 7th Ave 6th Ave 5th Ave 4th Ave 3rd Ave 2nd Ave 1st Ave a Find the straight line distance in blocks between A and B blocks b Find the walking distance and the straight line distance between the corner of 3rd St and 6th Ave and the corner of 15th St and 1th Ave walking distance blocks straight line distance blocks c What must be true about the points P and Q if the walking distance between P and Q equals the straight line distance between P and Q O Points P and Q must be on the same street and the same avenue O Points P and Q must be on different streets and different avenues OPoints P and Q must either be on the same street or the same avenue O Points P and Q must either be on different streets or different avenues