Answer:
1.671:1
Step-by-step explanation:
80/7=11.99(9) or ~12
90/12= 7.177(7)
11.99(9)/7.177(7)=1.671
1.671:1
 
        
             
        
        
        
Answer:
table B
every other input and output has the same number in a table
 
        
                    
             
        
        
        
Triangle D
Because the Pythagorean Theorem is only used with a RIGHT triangle
        
             
        
        
        
The answer is 10.
4 a + 5 b when a = 4 and b = - 1.2