Answer:

Step-by-step explanation:
Y-intercept:
     (8,0)  ; x₁ = 8 & y₁ = 0
    (3,7)   ; x₂= 3  & y₂ = 7
- First find the slope of the line.
       
                   
  slope y-intercept form of the line:  y = mx + b
Substitute the slope and x and y in the above equation. We can choose anyone of the given points. 
      
 
        
             
        
        
        
Answer:
The mass of the grains = 120 ± 1 g
Step-by-step explanation:
we are given the following:
Total mass of container + grains = 185 grams
Mass of container = 65 grams
Therefore, mass of grains is calculated as follows:
Mass of grains = ( Mass of container + grains) - mass of container
= 185 - 65 = 120 grams.
since the scale has an absolute uncertainty of 1 g, the mass of the grains is written as 120 ± 1 g
 
        
             
        
        
        
Answer:
okay let's start
Step-by-step explanation:

 
        
             
        
        
        
A) is 5 months
b) is option 1 difference of 40