Circle on the left: 6x + 2y
(4x + 2x = 6x) + (3y +- y = 2y)
Rectangle: 3x + y
(4x - x = 3x) + (5y - 4y = y)
Bottom Circle: 5x
(2x + 3x = 5x) + (-y + y = 0y [or 1])
I hope this helps. Message/comment if there is anything else you need regarding this question.