You have the right one selected. 
The answer is 2:1
To find this take each side of ABC and its corresponding side on DEF, then simplify. You can treat ratios just like fractions, so simplify them in the same way. 
20:10 becomes 2:1
12:6 becomes 2:1
16:8 becomes 2:1
 
        
             
        
        
        
The answer for C is 35 as output. The answer for D is 6 as input. Hope it help!
        
             
        
        
        
Answer:
y - 5 = -3(x + 2)
General Formulas and Concepts:
<u>Algebra I</u>
Point-Slope Form: y - y₁ = m(x - x₁)  
- x₁ - x coordinate
- y₁ - y coordinate
- m - slope
Step-by-step explanation:
<u>Step 1: Define</u>
Slope <em>m</em> = -3
Point (-2, 5)
<u>Step 2: Write function</u>
- Substitute:                    y - 5 = -3(x + 2)
 
        
             
        
        
        
Answer:
First Step: separate x^2 from -16
Second Step: add -16/25 to the other side.
Step-by-step explanation:
x^2 - 16/25 = 0
^^ this might be easier if you separate x^2 and -16
<em>First Step-</em>
so rewrite the problem as x^2/25  -16/25 = 0
then...
<em>Second Step-</em>
add -16/25 to the other side. This makes it: x^2/25 = 16/25
<em>Continuation-</em>
Now, you can multiply 25 on both sides to cancel it out.
so you have x^2 = -16
Message me if you want to solve for x.
 
        
                    
             
        
        
        
The answer is D <span>(1, 3) and (2, 6) 1*6=6  3*2=6
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