We need the parenthesis around 15 + 3
Answer is C.
(15 + 3) / 3 = 6
18 / 3 = 6
6 = 6
So the answer is C :)
        
             
        
        
        
The information to fill one the box regarding the proof include:
- AB = CD
- AD = CB
- BD is common to both triangles
<h3>How to illustrate the proof?</h3>
It should be noted that when two triangles of each corresponding sides are equal, then it's said that they are similar. 
Here AB = CD, and AD = CB as they illustrate the fact that they are parallel.
Learn more about flowchart proof on:
brainly.com/question/12611050
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So u want 3/4 cup x 3 and 1/2
0.75 x 3.5
= 2.625 - maybe round down to 2.6 or 2 and 1/5 cups I'm not sure it's an awkward number XD
        
                    
             
        
        
        
You would use PEMDAS, which means Parenthesis, exponents, multiplication, division, addition" and then subtraction. You would solve the problem in that order