Simplify -3xy3 + 7xy3 + (-xy3) + (-3xy3). xy3 3 xy3 - xy3 0

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 dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63