Answer:




Step-by-step explanation:
Hope this helps!
14 + 7 = 21 ounces. 
 
        
             
        
        
        
        
Answer:
The length of the model is 21 inches
Step-by-step explanation:
we have
The scale factor

That means
1 unit in the model represent 12 units in the actual
1 inch in the model represent 12 inches in the actual
Remember that

so
1 inch in the model represent 1 ft in the actual
The scale factor is
 
therefore
21 ft in the actual represent 21 inches in the model
 
        
             
        
        
        
Answer: #2
Step-by-step explanation: