Answer: 6
Step-by-step explanation:
6+6=12 12+6=18 thus 6 times 3 is 18
 
        
                    
             
        
        
        
Mercury: 2.44 × 103 kilometers 
Mars: 3.39 × 103 kilometers
Venus: 6.05 × 103 kilometers
Earth: 6.37 × 103 kilometers
Neptune: 2.46 × 104 kilometers
Uranus: 2.54 × 104 kilometers
Saturn: 5.82 × 104 kilometers
Jupiter: 6.99 × 104 kilometers
        
                    
             
        
        
        
Answer:
Plug in the values for x
Step-by-step explanation:
plug in x values into the equation
for example, plug -2 into the equation.  y= -2(-2).  y=4
So on and so forth