I don’t understand what I am being asked to write.

[charred mortar]

So I have this homework question and to complete the other I have to first do the first question but I have no idea how to go about doing that question. Idek where to start

[primal crane]

The region inside of the road way has width (300-2x) and length (500-2x)

[charred mortar]

Can you tell me how you got that, I’m trying to think of why but I just don’t see how you got that

[primal crane]

The width of the roadway is x

As such the region inside is the outer width

Minus two times of the roadway width

[charred mortar]

Oh i see it now

Thank you