The area equation is

, which when solved equals 50.24. That's the third answer on your list.
A rectangular floor covered without overlaps or gaps by 7 identical tiles, each of the length l and with w. If the w=12 ft, what is the total area of the floor?
Answer:
z ≤ 7
Step-by-step explanation:
9x - 7 ≤ 28 + 4x
9x - 4x ≤ 28 + 7
5x ≤ 35
x ≤ 35 / 5
x ≤ 7