urgent math question regarding dilation..?

Question

Perform the given dilation:
Reduce the following figure to 45%
A (2, 0)
B (2, 6)
C (7,0)

Enlarge the following figure to 150%
A (-2, 2)
B (0, 4)
C (2,2)

Answer 1

One reduction to 45%:
A(0.9, 0)
B(0.9, 2.7)
C(3.15, 0)

One enlargement to 150%:
A (-3, 3)
B (0, 6)
C(3, 3)

Answer 2

multiply each entry by .45 and 1.5 respectively:

A(.9,0)
B(.9,2.7)
C(3.15,0)

A(-3.5,3.5)
B(0,6)
C(3.5,3.5)