Answer:
They are not similar.
Step-by-step explanation:
 
        
             
        
        
        
Perimeter: x + (4x + 9) + (x + 11)
The value x is for the bottom of the triangle.
Simplified, it would be 6x + 20
        
             
        
        
        
Answer:
4.44
Step-by-step explanation:
the real answer is 4.44444444444
 
        
             
        
        
        
It would be 115,000. You round down since 16 is closer to 115,000 than 116,000.
        
                    
             
        
        
        
Answer:
If Kristen were to make 4 batches, and each batch requires 2 cups of flour, how many cups of flour would she need? To solve this question, we would just multiply 4 by 2, which gives us a final product of 8. 
Similarly, in this question, if one batch requires 1 3/4 cups of flour and Kristen wants to bake 3 1/2 batches, she would need 1 3/4 x 3 1/2 cups of  flour.
1 3/4 can be rewritten as an improper fraction- 7/4. 
3 1/2 can also be rewritten as an improper fraction- 7/2. 
Multiplying 7/4 and 7/2, we obtain a final product of 49/8, or 6 1/8. 
This means, Kristen will need 6 1/8 cups of flour to make 3 1/2 batches, and her belief that she needs 3 3/8 cups of flour is wrong, as she needs  a lot more than that.
Hope this helps!