I think the answer to the expression would be D. (10 - 2) x 4 because (10 - 2) would be multiplied 4 times, which means it would be four times greater. I hope this made sense and also helped you in some way.
        
                    
             
        
        
        
Answer:
Do not write ratios like so 
 2-1
Step-by-step explanation:
 
        
                    
             
        
        
        
        It also means that a rhombus is formed from 2 identical equilateral triangles ( 2 identical 30 - 60 - 90 triangles forms one equilateral ) and a side of that triangle measures : 30 feet. 
      Answer:
      The perimeter of the garden :  4 * 30 = 120 feet
        
                    
             
        
        
        
Example...
4^x = 16
log(4^x) = log(16)
x*log(4) = log(16)
x = log(16) / log(4)