Answer:
19 inches
Explanation:
Given data
The length of the subway is 855 miles.
we are told that 1 inch represents 45 miles on map
Required
we want to find the length of 855 miles in inches
Let us do the conversion from miles to inches
1 inches = 45 miles
x inches= 855 miles
cross multiply we have
x= 855/45
x= 19 inches
Hence the length on the map is 19 inches