Answer:
Step-by-step explanation:
4/7 x + 70 cm^3 = 3/4 x          Subtract 4/7 x from both sides
3/4 x - 4/7 x = 70 cm^3          The lowest common denominator is 28

5x = 70*28
5x = 1960                                Divide by 5
x = 1960/5
x = 392 cc 
 
        
                    
             
        
        
        
1 quart I think tbh idk but i think .
        
             
        
        
        
If Bobby claims Peter started with 21 cards, then we'll work this into our equation.
21 - 3 (that he lost) = 18
18 / 2 (the half he gave) = 9
So this means that he did have 21 cards to begin with. Please reply to this with a list of the answers that can/could be checked!