54 it just is
step-by-step explanation:
we would need a picture of the quadrilateral in order to answer the question. also, it seems that the question is missing some components.
the answer, i believe is y-8=1(x+4)
answer: 1400
step-by-step explanation: 20 x 5 = 100 add the zero 1000 8 x 50 = 400 + 1000 = 1400