Six times a number is greater than 20 more than that number. What are the possible values of that number? Which values of x satisfy the inequality 0.5 x minus 0.75 greater-than-or-equal-to 3.25

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.