Answer:
The first one because it does not repeat the numbers
Step-by-step explanation:
 
        
             
        
        
        
Answer:
1 * 5 = 5cm
3 * 5 = 15cm
2 * 5 = 10cm
Step-by-step explanation:
 1+3+2 = 6
then do 30 / 6  = 5 to find one part of the ratio
1 * 5 = 5 
3 * 5 = 15 
2 * 5 = 10
 
        
                    
             
        
        
        
Answer:
$8
Step-by-step explanation:
$40:15 gallons
<u> </u><u> </u><u> </u><u> </u><u> </u><u> </u><u> </u>:3 gallons
So first you say what did you do to 15 to get three?
15÷3= 5
Now you divide forty by five since that is what you did to 15 to get three.
40÷5= 8 
 
        
             
        
        
        
PEMDAS applies, so it should be multiply, then divide.
        
                    
             
        
        
        
Answer: -7, -6.5, -6.2, -4.5, 0
I hope this helps, stay safe, and have a great rest of your day. :)