The given expression is :
9 + 11g - 4h. 
substitute h=7 and g = 2 in given expression, 
9 + 11(2) - 4(7) = 3. 
Hope this helps!
        
             
        
        
        
Answer:
29
Step-by-step explanation:
tan c = opposite / adjacent
c = tan -1 (25/45) = 29
 
        
                    
             
        
        
        
Answer:
6
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
(-1.714, 1.857)
Step-by-step explanation:
Here, we want to find the approximate solution to the system of linear equations 
We start by plotting the graph of the lines 
We have the plot as shown below;
the red line represents the first equation while the blue line represents the second equation 
We have the solution as the point at which the two lines meet 
The solution to this is;
(-1.714, 1.857)