Answer:
Step-by-step explanation:
94
Mean = add all the numbers up and divide by how many numbers you added
So add (x +120  + 112 + 130 + 128 + 124 ) divided by 6  =118
x is the score you are looking for and 118 is the average he wants 
so (x + 614 ) divided by 6 =118
now multiply both sides by 6
x + 614 = 118 times 6
x + 614 = 708
subtract 614 from both sides
x = 94
 
        
             
        
        
        
Answer:
38.62
Step-by-step explanation:
You can figure this out by converting these to a positive number, then subtracting the lower number from the higher number.
 
        
             
        
        
        
Answer:
it's going to be the first one, (x+7,-y)
Step-by-step explanation:
take one point, A for example and count how far it moved left and right. left is negative, right is positive, do the same for y
 
        
                    
             
        
        
        
82+2x=180
2x=98
x=49
answer is x=49