Question

I need the answer to the blank questions

Answer 1

We have that
n 12 part a)
actual distance-------------> 124 miles
map distance----------------> 4 cms
scale factor of the map =124 miles/4 cms=31 miles/cm

n 12 part b) 
map distance=21 cms
actual distance?
[actual distance]=[map distance]*factor scale-----------> 21*(31)=651 miles

n 13) 
we know that
(13.5/9)=(x/8)--------------> x=(13.5/9)*8-----------> x=12 units

n14)
we have that
x/26=(32-x)/18-----------> 18x=832-26x--------> x=18.91 units