Answer:
B. No. He should have put the x values in the
denominator and the y values in the numerator.
Step-by-step explanation:
Took the assignment 
 
        
                    
             
        
        
        
The answer is 21. 
I am not sure if you're looking for the answer, or the steps... get back to me foor help. 
        
                    
             
        
        
        
Answer:
121.92 cm cubed
Step-by-step explanation:
all you have to do is multiply all 3 measurements to find the simple shapes volume, and then convert to centimeters using the simple 2.54 cm=1 in conversion rate
 
        
                    
             
        
        
        
Answer:
Answer 6.582
Step-by-step explanation:
    0	6.	5	8	2
1	5	9	8.	7	3	0
  −	0        
    9	8      
  −	9	0      
      8	7    
    −	7	5    
      1	2	3  
    −	1	2	0  
          3	0
        −	3	0
            0
Hope its understandable ._.
 
        
             
        
        
        
<u>Answer:</u>
Cost of package of paper = 4$
Cost of stapler = 7$
<u>Explanation:</u>
Consider the cost of package of paper = x and that of stapler = y.
Now, we are given that cost of 3 paper packages and 4 staplers = 40$
Hence we get, 3x + 4y = 40 as 1st equation. 
we are also given, cost of 5 paper packages and 6 staplers = 62$
Hence, the second equation is 5x + 6y = 62
Now, solving the two equations by method of elimination, we first equate coefficients of any one variable say x by multiplying 1st equation by 5 and second by 3 we get -> 
15x + 20y = 200
15x + 18y= 186
Subtracting the two we get y = 7 and substituting this value of y in first equation we get x = 4
which gives the required cost of one paper package = x = 4$
 and one stapler = y = 7$