Answer:
please mark me brainlist
Step-by-step explanation:
 
        
             
        
        
        
Answer:

Step-by-step explanation:

 
        
                    
             
        
        
        
18/30=?/100
18 times 100 = 1800
1800 divided by 30
60%
        
             
        
        
        
Answer:

Step-by-step explanation:
see the attached figure with letters to better understand the problem
we know that
In the right triangle ABD

In the right triangle BCD

remember that
m< BAD=m<CBD
therefore

equate the equations



 
        
             
        
        
        
Answer:
Step-by-step explanation:  
hello : 
ax+b =4x+9     so a=4 and b=9