Answer:
Kindly check explanation 
Step-by-step explanation:
Given the information above :
A) Cost equation for Newton Telephone company :
y = 8x
Where x = number of minutes used
y = total cost for x minutes
Cost equation for Tryus telephone company :
y = connection fee + (fee per minute * number of minutes)
y = 42 + (2x)
Where x = number of minutes used
y = total cost for x minutes
Amount is in cent 
 
        
             
        
        
        
Answer:
a. $20.45
b. $24.55
c. $4.55
Step-by-step explanation:
In this question, we are asked to calculate the cost price and profit or loss selling a pair of shoes. 
we proceed as follows 
Firstly, we want to find the cost price given the selling price and the mark up percentage.
mathematically;
profit =( selling price - cost price)/cost price * 100% 
here our profit is 120% with the cost price being $45. we plug these values 
120 = 45-cp/cp * 100%
120cp = 100(45-cp)
120cp = 4500 -100cp 
220cp = 4500
cp = 4500/220 = $20.45
His profit is selling price - cost price = 45 - 20.45 = $24.55
His profit selling same shoe for $25 is 25-20.45 = $4.55
 
        
                    
             
        
        
        
The answer would be 73 remainder 0 if rounded to one decimal place
        
                    
             
        
        
        
Answer:
Both are equations, one is linear, one is not linear boom
Step-by-step explanation:
 
        
             
        
        
        
Answer:
-31/8 
Please mark me as brainliest