This question is "Convert units multi-step word problems (US customary)
Need help..

Answer:
7 1/2 miles by bus, 1/2 mile on foot
Step-by-step explanation:
Gloria traveled 8 miles total, of which 880 yards were on foot.
To determine how far she traveled by bus, subtract 880 yards from 8 miles.
1) Convert 880 yards to miles:
880 yards 1 mile
---------------- * -------------- = 1/2 mile
1 1760 yd
Then Gloria traveled (8 miles less 1/2 mile), or 7 1/2 miles by bus and 1/2 mile on foot.