The answer is the second image from left to right (B). Examples of direct and inverse variations are showed in the image below. :)
The opposite operation of squaring is to find the square root. I dunno what the original equation is so I can’t help with that
The way to calculate the perimeter for this particular shape would be 3x15 being as there is three 15 inch sides and when we do the multiplication we get 45 so the perimeter is 45inches have a nice day and please mark brainliest