Answer:
-1/20
Step-by-step explanation:
2(3/8) - 4/5
6/8 - 4/5
30/40 - 32/40
-2/40
-1/20
 
        
             
        
        
        
I think that the answer is 8
if you want to check if it is right input 8 in place of b
        
             
        
        
        
Howdy! My name is Christian and I’ll try and help you with this question!
Date: 9/29/20 Time:  9:08 am CST
Answer:
D.
{ (1, 3), (2, 3), (3, 3), (4, 3) }
Explanation:
This is because for each x value, the number on the left of the set, there is no other x values of the same number, ( 1, 2, 3, 4)
Hope this helps you with your question!
<em>Sincerely,
</em>
<em>
</em>
<em>
</em>
<em>Christian
</em>
<em></em>