Answer:
Part A: Determine the test average for your math class after completing test 2. (2 points)
Part B: Determine the test average for your science class after the completing test 2. (2 points)
Part C: Which class had a higher average after completing test 4? Show work to support your answer. (6 points)
I am finding itz answer, pls help
 
        
             
        
        
        
The answer is:  " x = 11 ¼ "  ; or write as:  " x = 11.25 " .
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Explanation:
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  (40*9) ÷ (4*8) = x  ;  Solve for "x" ;
(40 * 9 = 360) . 
(4 * 8 = 32) .
(360) ÷ (32) = 45/4 = 11 ¼  ; or write as:  11.25 .
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Answer:
16:12
Step-by-step explanation:    
                    (4+12)=16
16/4 = 4
4x3=12
     Another method:
4---------3
16-------x
Cross multiplication
4x=16x3
4x=48
x=12
 
        
             
        
        
        
28.3
Step-by-step explanation:
the difference is the answer to a subtraction problem so we can plug in our numbers like this
25.6-(-2.7) which equals 28.3 
a good thing to remember when subtracting negative numbers is that a positive and negative won't always make a negative like in this example