Answer:
20
Step-by-step explanation:
10 + 10 
= 20
Just add units place first.
0 + 0 = 0
Then tens place.
1 + 1 = 2
So the number,
=> 20
 
        
             
        
        
        
Is there any more to this question? Because-5 doesn’t belong anywhere
        
             
        
        
        
Answer: 37.56
What the fraction 1/100 is saying is it is dividing them 3756 by a 100. 
3756/100= 37.56
 
        
             
        
        
        
For this case we must follow the steps below:
step 1:
We place each of the given points on a coordinate axis
Step 2:
We join the AC points (represented by the orange line)
We join the BD points (represented by the blue line)
It is observed that the resulting figure after placing the 4 points on a coordinate axis, turns out to be a rhombus.
In addition, the blue and orange lines turn out to be perpendicular, that is, they have an angle of 90 degrees between them. This can be verified by finding the slopes of each of the two straight lines (blue and orange), which must be opposite reciprocal, that is, they comply: 
In this case, the slope of the orange line is  and that of the blue line is
 and that of the blue line is 
Then  , it is verified that they are perpendicular.
, it is verified that they are perpendicular.
Thus, the conclusion is that ABCD is a rhombus and AC is perpendicular to BD.
Answer:
See attached image
Option D