Let's assume 
number of child tickets sold on saturday is x
number of adult tickets sold on saturday is y
On saturday, twice as many adult tickets as child tickets were sold
so, we get 

child admission is $6.30 and adult admission is $9.60
a total sales of $535.50
we get 

now, we can plug y=2x

now, we can solve for x


now, we can find y 


so, 
number of child tickets sold on saturday is 21
number of adult tickets sold on saturday is 42.........Answer
 
        
             
        
        
        
Two hundred thirty-five and six hundred seventy-eight thousandths
        
                    
             
        
        
        
Step-by-step explanation:
there is no diagram attached 
 
        
                    
             
        
        
        
Answer:
960cm³
Step-by-step explanation:
Find the base of the triangle (use phytagoras theorem)
c²= a²+b²
20²= 16²+b²
400=256+b²
b²=400-256
b²= 144
b=

base= 12
Volume: (1/2×b×h)×l
= (1/2×12×16)×10
=(6×16)×10
=96×10
=960cm³
 
        
             
        
        
        
To find the domain of a function you have to find all the possible input values.