Find the perimeter of this shape please help

On a architect's drawing of a house, 1 inche representa 1.5

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

Sketch the region enclosed by the given curves. decide whether to integrate with respect to x or y. draw a typical approximating rectangle and label its height and width. y= 5x, y=7x^2then find the area s of the region.