Divide 33 photos into two groups so the ratio it 4 to 7

2x+3y=12 x-y=6 solve the following system equations

What is the value of the digit 1 in the number 13?

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.