Answer:
the gradient is the same= 4
the y intecept is different, one is positive 1 and the other is negative 3
 
        
             
        
        
        
9.82 x 1/10 = 0.982
9.82 x 1/10 x 1/10 = 0.0982
9.82 x 1/10 x 1/10 x 1/10 = 0.00982
9.82 x 1/10 x 1/10 x 1/10 x 1/10 = 0.000982
Therefore:
9.82 x 10^(-4) = 0.000982
        
                    
             
        
        
        
Answer:
$40
Step-by-step explanation:
use y = mx + b  
y = amount saved = ?
m = amount saved per week = $10
x = time (in  months) saving = 2.5
b = money jerry started with = $15
plug in:
y = (10)(2.5)+15
y = $40
 
        
             
        
        
        
46 -2c
46 decreased by means 46 minus
Twice c would be c times 2