Louis spent 12 hours practicing guitar if 1/4 of the time was spent practicing chords, how much time did louis spend practicing chords?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?

1: 4 if the wew 35 surfboards at the beach how many were short boards?