Answer:V x 80 = 36      Original value is $0.45
Step-by-step explanation:  V is the original value and your x it by 80
 
        
             
        
        
        
Answer:
s=32
Step-by-step explanation:
15x-31 = 9x+11
6x=42
x=7
2(63+11)= 2(74)= 148
180-148=32
 
        
                    
             
        
        
        
Answer:
yes, it's a function
Step-by-step explanation:
A function relates one input to one output, and it's "only" one output.
 
        
             
        
        
        
1st rectangle: 
width: 2.48cm
length: 4.96
2nd rectangle: 
width: 4.96 (equals to the length of the 1st rectangle)
area: 9.92
length: 9.92/4.96 = 2
 
        
             
        
        
        

Multiply both sides of the equation by 12

