w=467.64 correct me if im wrongStep-by-step explanation:w=kxy/v² to get the formula of the constant simply divide both sides by xy/v²k=wv²/xyk=(1299)(6)²/(4)(9)k=(1299)(36)/(4)(9)k=46764/36k=1299w=(1299)(3)(12)/(10)²w=(1299)(3)(12)/100w=46764/100w=467.64