copy each part of the diagram above. mark in the pairs of equal angle. hence find the ratio x:y in each diagram

How do you solving the solution of each system using elimination?

Twenty points. 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

How can you tell when x and y are not directly proportional?