-1 / 7 = x
You need to combine the 2x and 5x then devise the 7x from -1
        
                    
             
        
        
        
Answer:b = 48.4017
Explanation:For this question, we will use the sine rule to get the missing side b. The sine rule is shown in the attached image.
We are given that:
a = 31
measure angle A = 38°
measure angle B = 74°
Substitute in the relation as follows:
sinA/a = sinB/b
sin(38) / 31 = sin(74) / b
b = [sin(74)] / [sin(38) / 31]
b = 48.4017
Hope this helps :)
 
        
             
        
        
        
I think it is A
Step-by-step explanation:
I think it is A because it says the account earns 1.5 percent 
 
        
             
        
        
        
I think it was decreased by 20% it by chance might be wrong but tell me if im right