Answer:
Each family spent about 34.25 on dinner
Step-by-step explanation:
$167 - $30 (tip) = 137
137 ÷  4 (for each family) = 34.25
BUT 
if each family is seperate than they each spent about 11.75 on dinner
167 - (30 x 4) = 47
47 ÷  4 = 11.75 
I'm pretty sure the first one is the answer though 
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
 
        
                    
             
        
        
        
 5.575 because you would need to add half of 0.05 which is 0.075
I think this right   : )