Can someone help me answer this problem. if youre correct, ill mark you as a brainliest. Thank you!

x=90 y=48 z=60

Step-by-step explanation: z=y+12 because they are parallel lines and must be equal alternate interior angles theorem. And y-18+z=90, because they are a right angle. x is 90 degrees because it is also a right angle

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

ratio is 2 : 9

the answer is three

13.5 : 3