Hey there! :D
Let's break this up piece by piece. 
The first two, let's say that the first boxes represent the bottom of the chart. 
The first far left box would be 13. 
The next one 9. 
Going across, 10 and 11. 
Two more up. 
7 and 3. 
One more across, which is 4. 
So, 13, 9, 10, 11, 7, 3, 4  would be the ones you would want to shade.
I hope this helps!
~kaikers
        
             
        
        
        
Answer:
7(x+3)
Step-by-step explanation:
7x+21
7x = 7*x
21 = 7*3
We can factor out a 7 from both terms.  What remains is what is inside the parentheses
7(x+3)
 
        
                    
             
        
        
        
Answer:11 hours
Step-by-step explanation:
 
        
                    
             
        
        
        
The tangent AD at point C forms a right angle to circle B, such as ∠ACB=90° and ∠ABC=55°.
We also know that the summation of all angles in a triangle is 180°. Thus we have the expression below:
180°=∠ABC + ∠ACB + ∠BAD
180°=55°+90°+∠BAD
∠BAD=35°
Therefore, the answer is 35°.
        
                    
             
        
        
        
Answer:
a) 
Step-by-step explanation:
She forgot to multiply 14 with -13