Respuesta :
Going from what is shown, I'd say the last sentence is correct, considering that it doesn't have a comma.
The correct sentence is Sally has a new blue bedspread.
The table was delivered in two, cardboard boxes. Use of comma INCORRECT. The sentence does not require comma, and the use of comma changes the meaning of the phrase.
It is, an octagonal, wooden table. Use of comma INCORRECT. The use of two commas would be correct if the phrase were re arranged.
The old, and dusty table had cracked broken legs. Use of comma INCORRECT. Commas are used to separate more than two characteristics, in this case we only have two, so not needed.