Shawn has an apple grove that is 75 feet x 50 feet. he then purchases a section of land 20 feet x 10 feet. find the new total area of the farm.

The answer is 3950 squared feet.

First you multiply the original area of the apple grove: 
which equals to 3750 squared feet.

Then you multiply the area that Shwan had purchased: 
which equals to 200 squared feet.

lastly, you add the two areas together to get 3950 squared feet.