Although they are the same variable, you cannot add two variables raised to different powers. 3x^1 + 5x^2 cannot work, but 3x^2 + 5x^2 can. Also, if you are multiplying them, they would combine to be 15x^3, as 3 and 5 (The coefficients) multiply together and x^2 times x^1 = x^3.
I hope that helps.
        
             
        
        
        
Answer:
$114.75
Step-by-step explanation:
 
        
             
        
        
        
8 units OA 4.4 2 1 OB 44 oc 8.8 20.4-8-8
        
             
        
        
        
Answer:
On his 6th birthday, he was 45 inches tall
Step-by-step explanation: