1. add 40 to the 40 and 25 
2. now you have 

3. then you have 

4. then square root 

5.then round answer to nearest tenth which is 
 
 
        
        
        
Answer:
Option D,  , since the answer is 4 which is a rational number considering that it's a whole number
, since the answer is 4 which is a rational number considering that it's a whole number
Hope this helps!
 
        
             
        
        
        
280*3= 840
3 journals is about 840 grams
        
                    
             
        
        
        
Answer:
x = 35
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
<u>Geometry</u>
- Definition of a Line: A line is 180°
Step-by-step explanation:
<u>Step 1: Set up equation</u>
40° + (2x + 30)° + 40° = 180°
<u>Step 2: Solve for </u><em><u>x</u></em>
- Combine like terms:                    2x + 110 = 180
- Subtract 110 on both sides:         2x = 70
- Divide 2 on both sides:               x = 35
 
        
             
        
        
        
Answer:
y = -5x + 1
Step-by-step explanation:
y - 6 = -5 (x + 1)
distribute -5 (x + 1) by multiplying 
y - 6 = -5x - 5
than add 6 to both sides 
y = -5x + 1