Keith is buying a television for 20% off the regular price. if the regular price of the television is $300, which proportion can be used to find the sale price, s,of the television, before tax?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

In the picture below, line pq is parallel to line rs, and the lines are cut by a transversal, line tu. the transversal is not perpendicular to the parallel lines. note: figure is not drawn to scale. which of the following are congruent angles?