CAN SOMEONE CAN HELP ME Use the information below to answer questions 13, 14, and 15.
Betty is sitting on of her surfboard out in the ocean. She is waiting for the perfect wave to come along so she can ride it in to shore. As she waits, she notices that the waves roll by in patterns, or sets.
13.As the top of each wave passes by Betty, it pushes her up. Which part of the wave does this?
A. compression
B. crest
C. rarefaction
D. trough
14.Betty sees a large speed boat pass in the distance. The boat’s motion causes small waves to form and travel outward. What will most likely happen as the larger ocean waves approach the waves created by the boat?
A. The waves will meet and then move in opposite directions.
B. The waves will cancel each other out and make the water flat.
C. The waves will combine and continue moving in the direction of the larger wave.
D. The waves will momentarily create a new wave with a crest higher than the original wave.

15.As Betty waits, she counts the number of waves that pass her during a 10-second period; she counts just 1. She estimates that the distance between crests is 6 meters. Betty sees the perfect wave and begins paddling. She pushes herself up, stands on the surfboard and rides the wave all the way in to shore, a distance of about 60 meters. It takes her about 10 seconds to ride the wave in. Use two methods to calculate the speed of the wave based on the information presented. Are they the same? Explain how you got your answers.