9514 1404 393
Answer:
4 11/24 fl oz
Explanation:
The volume of dressing Dakota made is ...
4 1/3 + 3 3/8 = (4 +3) +(1/3 +3/8) = 7 + (8/24 +9/24) = 7 17/24 . . . ounces
After using 3 1/4 ounces, the remaining amount is ...
7 17/24 - 3 1/4 = (7 -3) +(17/24 -6/24) = 4 11/24 . . . . ounces
4 11/24 fluid ounces of dressing remains in the jar.