Answer:
95 or more
Step-by-step explanation:
an average of 89 gives you a mean score of 445 to get an average of 90 he needs a 540 in total for all 6 exams that is a 95 or better.
 
        
             
        
        
        
1 because it can't be reflected over more than one line to be the same
        
             
        
        
        
5 per minute is the answer.
        
             
        
        
        
Answer:
1 Cubic yard is equal to 27 cubic feet. To convert cubic yards to cubic feet, multiply the cubic yard value by 27. For example, to convert 2 cubic yards to cubic feet, multiply 2 by 27, that makes 54 cu ft is 2 cu yd.
 
        
                    
             
        
        
        
Answer:
20 years old
Step-by-step explanation:
Let us assume that the son's age is x.
Therefore, 
2.5x = 55 - 5
2.5x = 50
x  = 20 years old
hope this helps :)