What is the equation of the line?

What is the first step of an indirect proof of a number that is divisible by two

Write the rational number in lowest terms 99/-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