PLS HELP 2. One side of a square is expressed as 2x + 1. What is the perimeter of the square?

In trapezoid efgh, m∠gfe=63∘. identify m∠ghe. !

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.

Acabinmaker buys 3.5 liters of oat varnish the varnish cost $4.95 per liter what is the total cost of 3.5 liters