Answer:
M=p-5n
Step-by-step explanation:
Here we are given that M+5n=p
We are asked to solve this equation for M. In order to do that we will follow these steps.
Subtracting 5n from both sides we get
M+5n-5n=p-5n
M=p-5n
Hence , now we have our M as dependent variable,  whose value depends on the values of p and n. One or both  of them can be independent variable/. 
 
        
             
        
        
        
Answer:
D. 12° 
Step-by-step explanation:
80° + 5x = 140° 
or, 5x = 140° - 80°
or, x = 60°/5
:. = 12° <em><u>Ans</u></em>
 
        
                    
             
        
        
        
Answer:
216 + 9i
Step-by-step explanation:
Given: f(x) = 3x² + 3 + 3x
 + 3x
When x = -9, f(x) equals to;
3(-9)²  + 3(-9 + 3(-9)
 + 3(-9)
243 + 3(3i) - 27
243 + 9i - 27
216 + 9i
 
        
             
        
        
        
Answer:
See below
Step-by-step explanation:
(36 - 2x) * (17-2x) = 700      I think, given the info
4x^2 - 106x + 612 = 700     expanded....