What is the directrix of the parabola?
(−4)^2=8(+3)

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Pyotr tchaikovsky sporting goods operates on a 45% overhead based on the selling price, which results in an overhead of $65.34 on the newest version of an air hockey game set. if the air hockey game set costs pyotr tchaikovsky sports $49.32, find the selling price, the markup, and the net profit.

Write an equation with the solution x=20. the equation should have the variable on both sides, a fractional coefficient on the left side, and a fraction anywhere on the right side. show work