In order to calculate the scale factor, what must you do? Take the image and divide it by itself

Take the pre-image and divide it by the image

Take the image and divide it by the pre-image

Take the pre-image and divide it by itself

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Ialready asked this but i never got an answer. will give a high rating and perhaps brainliest. choose the linear inequality that describes the graph. the gray area represents the shaded region. y ≤ –4x – 2 y > –4x – 2 y ≥ –4x – 2 y < 4x – 2

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect