Plz help. I do not get it

Which point on the x-axis lies on the line that passes through point c and is parallel to lino ab?

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.

What is the equation of a line passing through the point (6,1) and parallel to the line whose equation 3x=2y+4