Answer:
a. ∆ABC ~ ∆A'B'C'
b. Enlargement 
c. Scale factor = 4
Step-by-step explanation:
a. <A corresponds to <A'
<B corresponds to <B'
<C corresponds to <C',
Therefore, the similarity statement would be: ∆ABC ~ ∆A'B'C'
b. The image of the dilation is an enlargement of the original figure because the side lengths of ∆A'B'C are larger than the corresponding side lengths of ∆ABC.
c. Scale factor = the ratio of the corresponding sides 
Thus:
Scale factor = A'B'/AB = B'C'/BC = A'C'/AC
Scale factor = 24/6 = 48/12 = 60/15 = 4
Scale factor = 4
 
        
             
        
        
        
Answer: 29 feet.
Step-by-step explanation: The formula for the circumference of a circle is C = π d. In order to calculate the diameter of the tree we will use the same formula and solve for d.
91 = 3.14 x d
In order to solve for d you need to divide both sides for 3.14:
D = 28.98, rounded to the nearest foot is 29 feet.
 
        
             
        
        
        
Answer:320 
Explanation:
20 days times 13 pages= 260pages 
10 days times 6 pages = 60pages 
Total for the 30 days: 
260+60= 320 pages total
        
                    
             
        
        
        
y = 7
Horizontal line, therefore has a slope of zero