Once you know the length of one side, if Tate was going to put a fence around the perimeter of the garden, how much fence does he need? his lenghth is 289

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.

2x minus y equals 6, x plus y equals negative 3

On #16 : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.