If lines a and b are parallel and angle 1 measures 131°, then what is the measure of angle 6? 41° 180° 131° 49°

Can someone me and do the problem plz so i can understand it more better

Fanny mendelssohn manages all the magazines and paperback books at a local grocery store. she prices many paperbacks to sell at $7.99. the cost to the store is $5.29. what is the markup rate on a paperback book, based on its cost?

In which direction does the left side of the graph of this function point? f(x) = 3x3 - x2 + 4x - 2