Aplane travels a total distance of 1,223. if the the plane travels 460 mph for 75 minutes. then, how long in minutes does it travel going 439 mph?

Which of the following correctly describes the early view of catastrophism?

Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.