Anyone know how to do this?

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

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