Answer: Three quarters (30 ml) is made up of a 36% acid solution.
Step-by-step explanation:
Since we have given that 
Total amount of solution = 40 ml
One- quarter of the solution is given by

Three-quarter of the solution is given by

According to question, we have
10 ml of solution is made up of = 20% of acid solution
30 ml of solution is made up of = say<em> 'c </em>' of acid solution
40 ml of solution is made up of = 32 % of acid solution
So, our equation becomes,

Hence,  three quarters (30 ml) is made up of a 36% acid solution.
 
        
             
        
        
        
 Answer:
I believe it would be TRUE but sorry if I'm wrong!
Step-by-step explanation:
 
        
             
        
        
        
Answer:
Can I see the sign?
Step-by-step explanation:
 
        
             
        
        
        
Answer: The interest is $453.60.
The total amount includes principal + interest. The principal was 630 and the total amount was 1083.60.
1083.60 - 630 = 453.60.
Step-by-step explanation:
 
        
             
        
        
        
1st one is 512L
2nd one is 125mL 
let me know if im wrong