If BC = 8x, CD = 2x, and BD = 10, what is BC? simplify your answer please.

5/6+7/8what is the answer sealsdbdbshd

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1