Please I need help I don’t get anything on this quiz this week

The equation that describes a transverse wave on a string is y = (0.0120 m)sin[(927 rad/s)t - (3.00 rad/m)x] where y is the displacement of a string particle and x is the position of the particle on the string. the wave is traveling in the +x direction. what is the speed v of the wave?

Which of the following is an example of motion in two dimensions?

The heliocentric and the geocentric models of the solar system included these central principles