3. Emily purchased a pair of shoes that were marked 20% off the regular price. Which expression represents the price Emily paid for the shoes if they regularly cost n dollars?
A. 0.2n
B. n-0.2n
C. n-0.2"
D. - 20n

In each of the cases that follow, the magnitude of a vector is given along with the counterclockwise angle it makes with the +x axis. use trigonometry to find the x and y components of the vector. also, sketch each vector approximately to scale to see if your calculated answers seem reasonable. (a) 50.0 n at 60.0°, (b) 75 m/ s at 5π/ 6 rad, (c) 254 lb at 325°, (d) 69 km at 1.1π rad.