Identify the vertex, axis of symmetry, maximum or minimum, and domain and range of the function. f(x)=2(x+9)^2 -4

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.

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !