Help me please this is due in 15

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

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

Hello, i need compare km^2 and km. what's difference in this?