9 is what percent of 20?

Solve the x in the equation x^2+14x+17=-96

The sixth grade art students are making a mosaic using tiles in the shape of right triangles.each tile has leg measures of 3 centimeters and 5 centimeters.i f there are 200 tiles in the mosaic what is the area of the mosaic.

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge