Find the areas in that unit square PQRS, P(4,3), Q(4,1), S(-1,3), R(-1,1)

Which transformations could have occurred to map △abc to △a"b"c"? a rotation and a reflection a translation and a dilation a reflection and a dilation a dilation and a rotation

What is the value of x in the this question ?

Percent increase and decrease. original number: 45 new number: 18