1/4 rounded to the nearest hundredth 7/21 rounded to the nearest hundredth 16/84 rounded to the nearest hundredth

For the given quadratic equation convert into vertex form, find the vertex and find the value for x=6 y=-2x^2+2x+2

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 the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?