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Answer:
5
Step-by-step explanation:
x=3x-10 (x is the age)
2x=10
×=5
b. 12π
C= 2πr
R= D/2= 12/2= 6
C= 2x3.14x6
2x6= 12
C= 12π
x = -52
-4x-46+46=-3x+6+46
-4x=-3x+52
-4x+3x=-3x+52+3x
We can say that the length of line segment Y'Z' will increase by a scale factor of 2.
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