using normal model n(100,16) what percent of people's iqs are expected to be over 75 percent?

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.

What is a graph with a never ending line called?

We just started the introduction into circles and i have no idea how to do this.