Answer:
The scale factor is not 2
Step-by-step explanation:
Given
See attachment for the dilated triangles
Triangle ABC is dilated through center point O to form triangle A'B'C'.
From the attachment, we have:
 i.e. the distance from the center point to C
 i.e. the distance from the center point to C
and
 i.e. the distance from the center point to C'
 i.e. the distance from the center point to C'
The length of OC' is calculated using:



The scale factor (k) is then calculated by dividing OC' by OC



Hence, Tiffany's claim is incorrect.
 
        
             
        
        
        
Answer:
n = - 30
Step-by-step explanation:
Eight plus the quotient of a number and 3 is −2
Expressing in mathematical terms, we have;
8 + (n/3) = -2
To solve for n;
Multiply all through by 3.
3*8   +   3(n/3)  = 3 * (-2 )
24 + n = - 6
n = -6 - 24
n = - 30