I need help with my homework I’m struggling

x = 9

Step-by-step explanation:

STEP 1: Find the dilation of RQ to VT

Dilation = 9:12

= 3:4 or 3/4

STEP 2: Apply that dilation to PR to UV

Expression: x-3:18

(x-3 has to equal 3/4 of 18)

18/3 = 6

x-3 = 6

x = 9

This is your final answer.

Hope this helped ^^

(Please inform me of any mistakes! -- i havent done this for some time hehe)

2

step-by-step explanation:

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have