Answer:
r = 6cm 
Step-by-step explanation:
Solve for r: 


 
        
             
        
        
        
Answer:
y = 6/5x 
Step-by-step explanation:
1. 
2. subtract the two number on the top of the fraction bar to get 6
3. do the same for the denominator to get 5
4. your final answer is 
 
        
             
        
        
        
Y= 40x+ 50 (i need 20 characters to post this so ignore)
        
             
        
        
        
Y=30x+50
y is the total amount saved
x is the amount of months she deposited 30 dollars
30 is the amount she’s depositing
50 is the initial amount or the constant
        
             
        
        
        
Answer:
I think it's the last one D
Step-by-step explanation:
I'm not 100% sure, but I think the x can't repeat and 4 is the only number of x that hasn't been plotted yet. Tell me if it was right?