Maria and Emma each have movie DVD collections. The number of DVD's in Maria's collection can be represented by x
The number of DVD's in Emma's collection is 3 times the number in Maria's collection.
The total number of DVD's in both collections is 144

What is x the total number of DVD's in Maria's collection?

A=108

B=48

C=72

D=36

Areflection of shape i across the y-axis, followed by a , and then a translation left 6 units and down 4 units confirms congruence between shape i and shape ii. alternatively, a of shape ii about the origin, followed by a reflection across the y-axis, and then a translation right 4 units and up 6 units confirms congruence between shape ii and shape i.