Rational number that are not intergers

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.

If eh = hg and hg=16, find the diameter of k

Which inequality statement describes the two numbers on a number line? "? 7 and a number 5 units to the right of ? 7"