d. you already answered it. why do you need help? I'm confused. Is this a trick?
I'll need a picture of your box plot to answer that question
$34 divided by $3 because he spent $3 for each hour. The answer is A 11.3333
Note that this just produces three parametric equations:
In the
plane, this is just he parametric equation for an ellipse (as a function of u). The z is simply a linear function.
The surface is then an ellipse extruded along the z-axis. We get a elliptic cylinder.