It says that there was an error with my answer, but I don't know what, so I screenshotted what I typed and attached them as 4 images below:
Answer:
y equals 4 because if you substitute solve and isolate you get that answer.
The vertices of two rectangles are A(−5,−1),B(−1,−1),C(−1,−4),D(−5,−4) and W(1,6),X(7,6),Y(7,−2),Z(1,−2). Compare the perimeters
valkas [14]
The two rectangles are not similar. actually WXYZ is not a rectangle at all. it is a polygon but not a rectangle. hope the visual helps..
Its d) f(x)= 300+50x/2+x..............................................................................
There is the formula now just plug in the values and you will get your answer.