Helppp me i dont know what this is​

If the slope of one line equals the slope of another line then ? a) the two lines are intersecting lines b) the two lines are perpendicular lines c) the two lines are parallel lines d) the two lines always have very steep slopes

What is the slope of the line shown below?

12 out of 30 people chose their favourite colour as blue caculate the angle you would use for blue on a pie chart