Answer:
Hope this Helped ;-;
Step-by-step explanation:
75 is the Answer but the closet is 70
 
        
             
        
        
        
3) adjacent
x = 180 - 34 = 146
4)adjacent
x = 90 - 74 = 16
6)supplementary
2x + 5 + 75 = 180
2x + 80 = 180
2x = 100
x = 50
        
             
        
        
        
-16 + 3n = -(8 + 5n)
The - sign outside the parentheses acts as a -1, and so it is distributed to each term in the parentheses. 
-16 + 3n = -8 - 5n
+16
3n = 8 - 5n
+5n
8n = 8
/8
n = 1
 
        
                    
             
        
        
        
<span>the answer is -2666.71568627
</span>