One full batch of a recipe calls for 2 1/2 cups of milk. meadow has 4 cups of milk. select all of the quantities that meadow could make with the milk she has.

For this case what we can do is the following division:
 N = (4) / (2 1/2)
 N = 1.6
 Rewriting:
 N = 1 + 0.6
 N = 1 + 6/10
 N = 1 + 3/5
 Finally we get:
 N = 1 3/5
 
 Meadow could make with the milk she has about:
 N = 1 3/5
 of the quantity

What exactly is your question?