What is the area of rectangle B, C and D?

Answer:
B = 3y, D = 27, C = 9y
Step-by-step explanation:
Since the top side is equal to y + 9, we can find the areas really easily.
B is equal to 3*y, which is 3y.
D is equal to 3*9, which is 27.
C is equal to y*9, which is 9y.
Cheers!