Which situation can be represented by 1/2 x 3/4=3/8

The first one

Step-by-step explanation:

because you are multiplying 3/4 by 1/2

The first situation, "Renata has 3/4 of a yard of ribbon.  She used 1/2 of it to wrap a gift.  How much ribbon did she use?"

Step-by-step explanation:

In order to find a fraction of a quantity, we multiply that quantity by the fraction.  

Since our problem is multiplying 1/2 and 3/4, this means we want to either find 1/2 of 3/4 or 3/4 of 1/2.  The only problem involving one of these is the first one.

22

step-by-step explanation: