Answer:
1 hour and 20 minutes
Step-by-step explanation:
45+25+10=80 minutes which equal 1 hour and 20 minutes
 
        
             
        
        
        
Answer:
6
Step-by-step explanation:
2+4 = 6
..............
 
        
                    
             
        
        
        
The prime factorisation of 81 is 3^4(because 3*3*3*3 four times =81)
do not change the rest 3^4 m^2 x^3
        
             
        
        
        
The answer is 75. You can find this using the equation 9 = 0.12x and then dividing 9 by 0.12 or 12%.