I will show you how to do the first one.....we are finding the GCF...the largest number that goes into each number (same for variables)
1.)  20yx , 80x³  ( factor each number and variable)
20  =  2, 4, 5, 10, 20
y    =  y
x     =  x
80  =  2, 4, 5, 8, 10, 16, 20, 40, 80
x³  =  x, x, x
what is the largest number that 20 and 80 have in common?    20...
how about the variables?    x
so, the Greatest Common Factor (GCF is 20x)
        
             
        
        
        
1/8=0.125
0.625*5=0.625
Or
1/2=0.5
0.5/2=1.25
1.25/2=0.125
Which is 1/8
        
             
        
        
        
A can be converted since it is a repeating decimal
 
        
             
        
        
        
Answer:
3333.6
Step-by-step explanation:
bc i said soo
 
        
             
        
        
        
The measure of XYZ is:
C. 120