Ector's Herbal Remedy Clue

The answer to this puzzle needs some numeracy skills. We need two Basil plants with two leaves each (2x2), one Sage plant with three leaves (1x3), one Rosemary plant with two leaves (1x2), and two mint plants with one leaf each (2x1).

You would need to solve:
(2x2) + (1x3) + (1x2) + (2x1)