General Idea:
W
hen we are given a point P(x, y) centered at origin with a scale factor of k, then the dilated point will be given by P' (kx, ky)
When
, then P' is enlargement of P
When 
, then P' is reduction of P
Applying the concept:
In the diagram given A'B'C' is enlargement of ABC. So the correct option will be option A. 
, enlargement
2x + 7 = 3
2x = 3 - 7
2x = -5
x = -5/2
Step-by-step explanation:
step 1. a circle with r = 2 has area of (pi)r^2 = (pi)(4) = 4pi
step 2. a circle with r = 3 has area of (pi)r^2 = (pi)(9) = 9pi
step 3. the area, A, of a circle is half the sum of the area of the circles with r = 2 and r = 3
step 4. A = (4pi + 9pi)/2 = 13pi/2 = 6.5(pi).
step 5. the answer is not 6.5 but is 6.5(pi) or 6.5 times pi.
Answer:
14
Step-by-step explanation:
168/ 12
Answer:
75%
Step-by-step explanation:
When we multiply a number by 1.75.
Now, note that: 
Therefore, when we multiply a number by 1.75, it is the same as increasing by 75%.
Let us take an example say the number 15.
If we increase 15 by 75%, we have:
- 15+(0.75X 15)=15+11.25=26.25
