I will give brainliest to whoever helps me with this question. Also, if you could please explain to me how you solved it I would appreciate it!

Answer:
the answer would be 460
Step-by-step explanation:
First, whenever you do an area that means that you multiply always.
second, you see that the height of the shaded part is 23 and the width of it is 20.
now we have to multiply the width times the height and that how you would get your answer