Answer:
32.3 (square feet)
Explanation:
convert the number into improper fractions (format a/b):
6 4/5 = (6 X 5 + 4) /5 = (30 + 4)/ 5 = 34/5.
4 3/4 = (4 X 4 + 3) /4 = (16 + 3) /4 = 19/4.
the area = length X width.
(34/5) X (19/4) = (34 X 19) / (5 X 4)
= (646) /20
= 32.3 (square feet)