The figure below is [math]\frac{2}{3}[/math] of the solid formed by rotating the parabola [math]f\left(x\right)=-x\cdot\left(x-4\right)[/math] around the x-axis.

Using only the given tools, construct an equilateral triangle.

[font=Trebuchet MS]A test has twenty questions worth 100 points.  The test consists of True/False questions worth 3 points each and multiple choice questions worth 11 points each.  How many multiple choice questions are on the test?[br][br][/font]Solve the system by graphing below.

Watch the video below, then mimic the construction to create a pentagon.

Find the dynamic equation of the tangent line to the graph of f(x) at point P.

Use a spreadsheet to model u(n) = 0.75*u(n-1) + 10, u(0) = 5.[br]Does this model have a fixed point?