6). (3 points) Last year Mrs. Sweeney's garden measured 9 feet long and 8 feet wide. This year, Mrs Sweeney increased the area of her garden to 112 square feet by increasing its length, keeping the same width. How long is her garden this year?
7). (3 points) I have a square. It's area is 81 square inches. I added a few inches to each side of my square (keeping it square) and i's new area is 144 square inches. How many inches did I add to each side?