-50 to -51; 49 to 50; -48 to -49; 48 to 49; 50 to 51 
I just add one
        
             
        
        
        
Answer:
429
Step-by-step explanation:
First You add 2+2 and then you add 205+123+101+7
 
        
             
        
        
        
Answer:
200 pencils and 120 pens
Step-by-step explanation:
Let the number of pencils be x while pens be y.
Considering the cost of whole purchase then, we get the equation
0.5x+y=220
Considering the number of items bought, then the equation is
x-y=80
Adding the two equations then we have
1.5x=300
x=300/1.5=200
Consideeing that x-y=80 and x is 200 then
200-y=80
y=200-80=120
Therefore, the pencils were 200 and pens 120 pieces
 
        
             
        
        
        
Answer:
A
Step-by-step explanation:
(2m-n) is a factor of 4(2m-n)
 
        
             
        
        
        
Hello There!
It is $60
Hope This Helps You!
Good Luck :) 
- Hannah ❤