We can divide this shape to a rectangle and a trapezoid (as shown in attachment). So the area of this shape is a sum of areas of the rectangle (red) and the trapezoid (green).
Area of the rectangle: a × b
a = 3.5
b = 9
a × b = 3,5 × 9 = 31.5 [u²]
Area of the trapezoid: (a + b)h/2
a = 9
b = 9 - 2 - 5 = 2
h = 2
(a + b)h/2 = (9 + 2) × 2/2 = 11 × 1 = 11 [u²]
So the area of that shape is:
31.5 + 11 = 42,5 units²