If you mean z to the powers given the answer will be B
        
             
        
        
        
Answer:
Step-by-step explanation:
option 2
 
        
                    
             
        
        
        
Well, first you have to convert to one unit... then simplify
D:H
150m:16500cm
150m:160m
150:160
30:33
10:11
        
             
        
        
        
Answer:
x = 23/5 OR 4.6
y = 157/15 OR 10.46
Step-by-step explanation:
x = 4x + 6x - 33 = 13
> 10x - 33 = 13
> 10x = 13 + 33
> 10x = 46
y = 4 (25/5) + 3y = -13
> 92/5 + 37 = -13
> 3y = -13 - 92/5
> 3y = - 157/5
 
        
             
        
        
        
Answer:
first one and the biology one