Answer:
4.55
Step-by-step explanation:
A dilation pushes all points outwards, a factor of 2 would double the distance (in this case the point V)
every further step is then also an increase of the factor so
1->U (nothing changes)
2->V
3->W
4->X
so the correct answer is 4
Divide 18 by 3 and you get 3 as an answer