We can re arrange this:
(-5)*(4) * x^6 * x * x^8 * y * y^6 * z^9 * z^9
using exponent properties
we can get
-20 x^15 y^7 z^18
as our simplified answer.
        
             
        
        
        
A=8
Explanation: a+b=12 a-b=4
 ^^^^^^^ ^^^^^^
 8+4=12 8-4=4
 A=8
        
             
        
        
        
Answer:
43
Step-by-step explanation:
 
        
             
        
        
        
I belive its B,and D,
B because, the lines are supplementary(because supplementary means it equal 180 degrees in length, which is those two angles.)
D, because they are put in such an angle in which making them adjecant.
Hope I helped:-) Bye bye.
        
                    
             
        
        
        
Please explain more I don't get whAt your asking