The graph shows a rider's height y, in feet, above or below the center of a ferris wheel, for a
given number of seconds, x.
how many minutes does it take for the wheel to make 8 revolutions?

6 min
10 min
12 min
45 min

"curse these trig-loving pirates! " devora mutters as she looks at the map. then, after thinking for a moment, she walks back to the entrance of the secret cave, measuring 48 meters along the way. after performing a calculation, devora walks back to the empty treasure, faces the entrance, and turns a certain number of degrees to her left before walking 89 meters to the treasure. supposing that the angle at the cave entrance is acute and that devora's calculations were correct, how many degrees did she turn?