If this is represented by a linear function, then we know that the amount of money decreases at an unchanging amount. Knowing this, and knowing that on day 8, she had 2400, we simply just add 2400 to 8 100's:
2400 + 8*100 = 2400 + 800
Carrie initially had $3200, or Option C.
 
        
                    
             
        
        
        
Indirect material cost: y
explained by units produced: x
Linear regression. Cost estimation equation: y=mx+b
Constant: b=$15,640
Standard error of y estimate=$3,600
r^2=0.7704
Number of observations: n=22
x coeffient: m=11.25
Standard error of x coefficient=2.19
m=11.25, b=15,640 → y=11.25x+15,640
Answer: The cost estimation equation is y=11.25x+15,640
        
                    
             
        
        
        
Answer:
Complex roots [Refer picture]
Step-by-step explanation:
I am not sure if it's correct.
But we will get complex roots
 
        
             
        
        
        
Answer:
15.7
Step-by-step explanation:
600 - 584.3 = 15.7