Help please asap please?

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

1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)

An object in geometry with no width, length or height is a(n):