Identify the 9th term of the given geometric sequence. 1/3, −1/9, 1/27, −1/81, HELP ASAP!!!

1. a right triangle is graphed on a coordinate plane. find the length of the hypotenuse. round your answer to the nearest tenth. 2. use the angle relationship in the figure below to solve for the value of x. assume that lines a and b are parallel and line c is a transversal.

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.