Free points :D, enjoy my beautiful people

Consider the diagram. which line segment has the same measure as st? rx tx sr xs

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9

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.