Answer:
7.9
Step-by-step explanation:
 
        
             
        
        
        
To find the speed you must write S= d/t so for the first one we will chang 15 m to b so it is = 0.25h so s=3/0.25h = 12km/h an why secand is 45 m to h = 0.75h so S=d/t S =12/0.75 =16 km/h the to find the totel speed we should + the speed together so 12 + 16 = 28 km/h
        
             
        
        
        
Seven pizzas: 7 pizzas
Shared between 3 friends: 7 pizzas / 3 friends
Simplify the fraction:
7 / 3
(3 goes into 7 twice, 7 - 6 = 1)
2 1/3
The fraction of pizza that each friend gets is 2 1/3.
Hope this helps!! :)
 
        
                    
             
        
        
        
A net is basically a flattened out 3D solid. If you fold all the sides up, you would end up with the 3D model.
 
        
        
        
156 dollars because 13 times 12 (months)
equals 156