Answer
1st is yes 
2nd is no
Step-by-step explanation:
 
        
                    
             
        
        
        
X, y - the numbers
The numbers add to 9 and multiply to -70.

The numbers are 
-5 and 14.
 
        
        
        
Answer:
69.12
Step-by-step explanation:
 
        
             
        
        
        
I hope this helps you 
A ) 7 less than triple a number
B ) 7 more than triple a number 
C ) 3 less than seven time a number 
D ) 3 more than seven time a number 
answer is B
        
                    
             
        
        
        
the gcf is product of gcf each factor,
gcf(40a³b,24a³b⁵) 
= gcf(40,24)•gcf(a³,a³)•gcf(b,b⁵)
= 8a³b