What properties of equality are these? the options i have are distributive, addition, subtraction, multiplication, division, transitive, symmetric, substitution, and reflexive. 1. x + (3x + 20) = 180 2. 4x + 20 = 180 3. x = 40

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

Factor the expression using gcf 9b+45

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36