Find the missing side and round to the nearest tenth

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?

What are the digits that repeat in the smallest sequence of repeating digits in the decimal equivalent of 24/11?