I need help, please

Will mark brainliest. when ∆rst is translated 4 units down, what are the apparent coordinates of t’?

Icould really use some with this question.

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.