56* cause alternate interiors angles
        
             
        
        
        
63/84 divided by 21/21
=3/4
 or 
63 divided by 84=0.75 which is the same thing as 3/4
        
                    
             
        
        
        
Answer:
Cost of tshirt = £7.29
Cost of what = £0.86
Step-by-step explanation:
2t +3h = 12; 10t + 15h = 60
5t + 4h =33; 10t + 8h = 66
15h -8h = -6
7h = -6; h = -6/7; h = 0.86
2t +3(-6/7) =12
14t -18 = 84
14t = 102; t = 102/ 14; t=7.29
 
        
             
        
        
        
The median is the middle number of the data plot. Since there 30 numbers, there isn't a exact middle. To find the median you must add the two middle number then divide by 2. 
In this case you must add 87 and 88 which gives 175.
Then divide 175 by 2 which gives 87.5
87.5 is the median
        
             
        
        
        
Negative 3143 over 1000 divide -3.143 by 1000 and there’s your answer