Answer:
87
Step-by-step explanation:
Given is a figure of cyclic quadrilateral. 
Opposite angles of a cyclic quadrilateral are supplementary. 
Therefore, 
z° + 93° = 180°
z° = 180° - 93°
z° = 87°
z = 87
 
        
             
        
        
        
Answer: Here is the explanation. also it it +3y not -3y
Step-by-step explanation:
x+y+4+2y+1=x+3y+5 because
2y+y=3y
so now you have x+3y+4+1
4+1=5
now you have: x+3y+5
if you do not understand, What i am trying to say is, you need to add all of the same things.
 
        
             
        
        
        
I think that the answer is seven but i’m not sure
        
             
        
        
        
Answer:

Step-by-step explanation:
Convert m to cm, 
0.045m =4.5cm
0.034m = 3.5cm
0.01m = 1cm
Volume = 4.5 cm × 3.5 × 1 = 15.75 cm3
 
        
             
        
        
        
You don't need to regroup when adding a two-digit number with a number.