Bakit ang bababoy ninyo

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.

I'm marking the brainliest and it's 15 points

Quadrilateral efgh was dilated with the origin as the center of dilation to create quadrilateral e'f'g'h'. the quadrilateral was dilated using a scale factor of 2.5. the lengths of the sides of quadrilateral efgh are given. what is the length of side f'g'?