2/5 times 3/4 in a story problem

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.

Which function has the domain x> -11

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]