Ok so for the first one it’s super simple I’m gonna do it as less complicated so it can help you :)
So first we need to convert the mixed number to an improper fraction 
1 4/5 = 9/5 
Now we need to reduce the numbers greatest common divisor which is 3 
3/5 x 6 
Now multiply the numbers 
Your answer is 18/5 I hoped this help 
Now for the second one 
this one is a little more complicated and I don’t know how to make it sound easier so I’m gonna tell you the answer which is 580/21 
The last one is the same steps we did for the first one which is 27/20 
I hoped this helped you it is a little difficult but you’ll get the hang of it :)
        
             
        
        
        
Answer:
0.25, 4/16, theres like a million more
Step-by-step explanation:
is that what youre looking for?
 
        
                    
             
        
        
        
Answer:
see explanation
Step-by-step explanation:
Given D(3, 2 ) → D'(2, 4 )
The x- coordinate of D' is 1 less than D and the y- coordinate of D' is 2 more than D, thus the translation rule is
(x, y ) → (x - 1, y + 2 )
Apply this rule to points O and G
O( 2, - 4 ) → O'(2 - 1, - 4 + 2 ) → O'(1, - 2 )
G(- 1, - 1 ) → G'(- 1 - 1, - 1 + 2 ) → G'(- 2, 1 )
 
        
             
        
        
        
The answer is one.
Hope this helped.