Answer:
56.35 ft^2, or 56 7/20 ft^2
Step-by-step explanation:
One way of doing this problem quickly is to convert both measurements into improper fractions before multiplying them:
9 4/5 = 49/5 and 5 3/4 = 23/4.
Then the area of the garden is 49/5 times 23/4, or 1127/20 ft^2, or
56.35 ft^2, or 56 7/20 ft^2.