Solve the following equations, show all work. Leave your answers in reduced improper fraction form . X+7/6=2x-7/6

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.

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

If y varies directly as x2 and y=6 when x=6, find the constant of variation.