Answer:
एजतयज्ञज्ञक्षक्षरत थतमज्ञभमयर
-2x-3=-18, x = -3/2y + 9 and x-6y=-6, x = 6y-6
<span>I narrowed it down to C or D because all the other options are not ways of measuring mass of a physical mass such as a button, and I have concluded the answer is C. 1 kilogram</span>
An 80:1 scale means that for every unit on a diagram, there are 80 units in the real world. So, this means that the floor plan is (80x4) x (80x5) cm, which equals 320 x 400 cm.
If you want to further simplify your answer, this translates to 3.2 meters x 4 meters