Can a table still be a function if the x values arent the same but 2 y values are the same?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Triangle xyz has vertices x(1,3), y(0,0)

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