rectangular floors x and y have equal area . if floor x is 10 feet by 18 feet and floor y is 9 feet wide , what is the length of floor y , in feet ?
n0 = 10.0
n1 = 18.0
n2 = 9.0
t0 = n0 * n1  # area of rectangle
answer = t0 / n2
print(answer)