shelly sews a square blancket that has an area of 144 square feet it has 36 blocks each the same size what is the approximate length

Answer 1

144/36 = 4
So the area of each block is 4 square feet
then each block has a length of 2 feet
the length of the whole blanket is 12 ft

Don't know where the "approximate" part comes into the picture.