Answer:
Actual distance between Gladville and Columbus = 144 mi
Explanation:
On map A,
Distance between Riverside and Gladville = 6.8 cm
Scale used → 1 cm = 40 mi
Therefore, actual distance between Riverside and Gladville = 6.8 × 40
= 272 mi
On map B,
Since, actual distance between Riverside and Gladville = 272 mi
Distance between Riverside and Gladville on map = 3.4 cm
Scale used =

=

=
Scale used: 1 cm = 80 miles
Distance between Gladville and Columbus = 1.8 cm on map B
By using scale,
Actual distance between Gladville and Columbus = 1.8 × 80
= 144 mi