Alright! When you have a constant to a power times another constant to a power (ex. [x^3 times x^3] ) you simply add the powers and keep the base [x^6]. When you have a power to a power (ex. [(12^3)^3] ) you multiply the powers and keep the base [12^9]. When you have a constant to a power divided by a constant to a power (ex. [ x^2 divided by x^5] ) you subtract the powers and keep the base. It's hard to see the questions, so I'll leave this here for you to use as a guide.
        
             
        
        
        
Answer:
start witg parentecees, then multiplication then addind and substracting
Step-by-step explanation:
2(x+10)+10-4+5 = 2x + 20 +10 -4 +5
2x+31 is the final answer
 
        
                    
             
        
        
        
Step-by-step explanation:
¼years=3months old
11/12years=11months
3months +11months=1year 2months
Therefore Alessandro is 12years 2months old
 
        
             
        
        
        
Answer:
6
Step-by-step explanation:
a=V⅓=216⅓=6
hope this helped