Answer:
-1.36
Step-by-step explanation:
(-4^2/0.8-3)/10×-4/5=-1.36
 
        
             
        
        
        
Distributive property
3(x+3)
3*x + 3*3
3x+9
divide by three to simplify
x + 3
if you’re supposed to solve it, subtract three
x = -3
        
             
        
        
        
Answer:
Question A)

Question B)

Question C)

Step-by-step explanation:
A)
We are given: 

We can rewrite the expression: 

The square root and square will cancel each other out. Thus: 

B)
We are given: 

Rewrite: 

Note that the square root of 9 is simply 3. We can also factor the second part: 

Rewriting: 

Simplify: 

C)
We are given: 

Rewrite. Note that 50 = 25(2): 

Simplify. We can rewrite the factor as: 

The square and square root will cancel out. Thus: 

 
        
             
        
        
        
Answer:
the answer to that is sometimes
 
        
             
        
        
        
When you simpilfy a fraction you make it smaller. When you divide a number you make it smaller.
Ex: 5 /5 1
 _ = _
 10 /5 2