Answer:
4073.76
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: The equation that represents the give situation is, y = 0.75 x + 12
Step-by-step explanation:
Here, x represents the number of batteries the child bought and y represents the total cost.
Since, the cost of one batteries = $ 0.75
⇒ The cost of x batteries = 0.75 x
The cost of one toy = $ 12
Hence, the total cost = The cost of one toy + The cost of x batteries
= y = 0.75 x + 12
Which is the required equation that represents the given situation.
 
        
                    
             
        
        
        
Answer:
5.4 > x > 2.8
Step-by-step explanation:
Sum of two sides is always greater than the third side 
Case1 : 
4.1 + 1.3 > x 
5.4 > x 
Case2: 
4.1 + x > 1.3 or 1.3 + x > 4.1 
x > 1.3 - 4.1 or x > 4.1 - 1.3 
x > - 2.8 or x > 2.8 
 Note that it is obvious x is not -ve so neglect -2.8. x > 2.8
Hence, 
5.4 > x > 2.8
 
        
                    
             
        
        
        
Answer:
he will have saved 45$
Step-by-step explanation:
if you take 2 from every 5 and 5 x 15 = 150, you would do 2 x 15 and get 30. So, the answer is 30$