Simplify the expression 23r - 23r

please help me UwU

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.

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

The distance between two points is 6.5cm and scale of map is 1: 1000 what's the distance between the two points