Line M is parallel to line N. What are the measures of <1 and <2?

We just started the introduction into circles and i have no idea how to do this.

What is the graph of the absolute value equation ? y=|x|-5

The price of a lawn mower is x dollars. the store is having a 75% end of summer clearance sale. which expression can be used to find the clearance price of the mower? a) .25x b) .75x c) x - .25(75) d) x + .25(75)