What multiplication problem is modeled below?

3/4 x 1/2

Step-by-step explanation:

The dark green part, aka the top layer, is equivalent to 3/4

The greenish yellow part, aka the left side, is equivalent to 1/2

Because with the rectangles, you use the top layer for the first fraction, and the minority color as the empty space, (the denominator would be the amount of spaces on the top) and the left side, again, the minority color, and the whole amount of spaces.

the answer is 15% decrease