Answer:
[tex]y^2+2y[/tex]
Step-by-step explanation:
The area of a square can be found by [tex]s^2[/tex] and the area of a triangle can be found by [tex]\frac{1}{2}b*h[/tex].
The area of the square with side length y is [tex]y^2[/tex].
The area of the triangle with the base 4 and height y is [tex]\frac{1}{2}4*y = 2y[/tex]
Adding the areas together gives [tex]y^2+2y[/tex]
