Explain how to check if your solution to an equation is correct. (solve addition + subtraction equations)

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

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Find two consexutive odd integers such that the sum of their square is 650