The one-piece cast-iron frame, a crucial development in the history of the piano, was invented by: select one: a. sebastian erard of paris, france in 1821 b. john broadwood of london, england around 1760 c. bartolomeo cristofori of florence, italy in 1709 d. alpheus babcock of boston, usa in 1825

the answer of "what has three legs but never walks" is a yard stick. this answer can be found at

ive noticed that too but is this a question

the answer is b. i'm positive it's that answer.

i think cheerleading is definitely a form of art. or at least it should be! not everyone has what is takes/and or the determination to become a cheerleader. it takes practice and hard work, along with being able to master a move correctly, like dancing. dancing is a form of art, and i think cheerleading is too. not everyone can dance, just like not everyone can be a cheerleader.