Answer:
5 negative tiles and 5 negative tiles
Step-by-step explanation:
When multiplying a positive number by a negative number, the product is always negative.
This can be visualized using integer tiles:
 
        
                    
             
        
        
        
£10+£5 = £15
£15-£1 = £14
he has spent £14.
so...........
14 divided by 10 = 1.4
1 packet of card costs £1.40
hope it helped :)
        
             
        
        
        
The answer is 138
Because the angle is 180 and what I did was 2 x 21 = 42 and I did 180-42 equals to 138
        
                    
             
        
        
        
No, this is not valid.  In the picture below, 

 is a vertical angle with 

.  But 

 is not 
 
 
        
        
        
<span> The larger the numerator, the larger the fraction.
3/4 is bigger then 1/4.
You could also draw a model :D
Your answer is <em>no.</em>
</span>