How much water should be added to 3 gallons of pure alcohol in order to obtain a solution that is 15% alcohol?

20 ! need which shows a difference of squares? 10y^2-4x^2 16y^2-x^2 8x^2-40x+25 64x^2-48x+9

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 the cube root of -1,000p^12q3? -10p^4 -10p^4q 10p^4 10p^4q