X, Y and Z are three angles lying on a straight line. If x = y = z ,then find the value of y. ( please i will be needing it immediately )

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.

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv

10x − 5y + 14 = 0 whats the answer pls