What is (2g + 9h - 5) - (6g - 4)
g = -2
h = 5

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

Find dy/dx using implicit differentiation ln(20+e^xy)=y

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