Answer:
15 (3+1)
Step-by-step explanation:
Hope this helps :)
 
        
                    
             
        
        
        
Answer:
-4 and -3
A negative times a negative results to a positive number, but when two negative numbers are added to each other, it still results to a negative number.
Hope I helped!
 
        
                    
             
        
        
        
Answer:
Different ways to write multiplication include: 
3 times 5
3x5
(3)(5)
3(5)
(3)5
etc
Step-by-step explanation:
I hope this helps!