Answer:
Translate the circles so they share a common center point, and dilate circle Y by a scale factor of 3.
Step-by-step explanation:
 
        
             
        
        
        
Markup =35%
Model train cost =100
So 135%=100
1%=100/135
100%=100/35)*100=74.07
Original cost =74.07
        
                    
             
        
        
        
You must begin by isolating the x. 
1. add -35 to the other side of the equation
2. divide by 8 to get x by itself
Hope this helps!
        
             
        
        
        
Answer:

Step-by-step explanation:

Convert the mixed number into improper fraction


To multiply one fraction by another, multiply the numerators for the numerator, and multiply the denominator for its denominator and reduce the fraction obtained after multiplication into lowest term



Convert the improper fraction into mixed number

Hope I helped!
Best regards! :D