Answer:
Ruth is  x+4=7/3+4,   esmerelda  is  5x+4=35/3+4
Step-by-step explanation:
if Ruth is x, esmerelda is 5x, 
four years ago, 
Ruth is x+4,  esmerelda is 5x+4,  depend on the sum, we get:
x+4+5x+4=22, x=7/3
so:
Ruth is  x+4=7/3+4,   esmerelda  is  5x+4=35/3+4
 
        
             
        
        
        
40 ÷10 = 4
Mrs Edward knitted 4 pairs of gloves.
        
                    
             
        
        
        
The given terms are two terms apart, so their difference is twice the difference of adjacent terms.

The value of d is 4.