A because it equals 1 and it goes up.hope this helps :)
        
                    
             
        
        
        
6.43999001  
1st  you move the decimal 8 times to your right 
once you are done moving the decimal you should end up with a whole number 
you answer is (643, 999, 001)
        
             
        
        
        
Step-by-step explanation:
by deleting 
9y = -9 
y = -1
6x - 4 = -10
6x = -6 then x = -1 
 
        
             
        
        
        
The measurement of angle x is 40°. these two triangle are congruent so their sides share the same length and their angles share the same degrees
        
                    
             
        
        
        
Answer:
a) 30
b) 88
c) 70
d) 16
e) 160
f) 250
Step-by-step explanation:
So the first step would be to switch the numbers around. For example A would be 15 and 50 instead of the original order of 50 and 15. You would then take the 1st number in the new arranged order (15) and multiply it by 100, then divide in that order. 1500/50 = 30.
Another example, letter B. 
Step 1 - Rearrange : 22 and 25 
Step 2 - Multiple by 100 =  2200
Step 3 - Divide : 2200/25 = 88
Good Luck :) Hope this helped.