Answer:
(d + 1) miles.
Step-by-step explanation:
Sue lives 6 miles away from where Gill lives.
Sue also lives 1 mile closer to the Taco town restaurant than Gill does.
If d represents the distance Sue lives from Taco town, then the expression for the distance from Taco town to Gill's house will be given by
(d + 1) miles.
Here the Taco town may lie on the way from Sue's house to Gill's house or may not. (Answer)