Well I’m back with another question- So uh I’m grasping the concept of this subject still since it’s gotten a bit more advanced ,so please don’t judge haha
Ok but here’s the question I need help with!

When Mr. Watson purchased his house, the dining room measured 20 feet long and 16 feet wide. Before he moved in, Mr. Watson paid a company to increase the length of the dining room by 4 feet.

Part A:
How much greater is the area of the new dining room than the old dining room?

Part B:
In the original room, an 8x10 rug covered a fractional part of the floor. For the new dining room, Mr. Watson wants to buy a rug to cover that same fractional part of the floor.

What could be the length and width of the new rug?

If you help, I will mark brainliest! Thank you.