Answer:
 The actual width of cut stones is 8 inches 
Step-by-step explanation:
 The scale drawing you are using to cut paving stones for a driveway shows a measurement 2 inches wide and 4.5 inches long. 
Scale drawing length = 4.5 inches 
Scale drawing breadth = 2 inches 
Actual length = 18 inches 
Let x be the actual width 
So,

x=8 
Hence the actual width of cut stones is 8 inches