What is the speed of a bus which travels at a distance of 480 km in 8 hours, convert the speed to meters per second?” anyone can answer it's for grade 7 and include the steps pls​

This is really important 1.which of the following prefixes represents the largest value? (2 points)gigahectorkilomilli2.which of the following types of graphs is best for plotting the mean, median, and mode of data? (2 points)bar graphbox-and-whiskercircle graphstem-and-leaf

Consider a system to be two train cars traveling toward each other. what is the total momentum of the system before the train cars collide?   kg • what must the total momentum of the system be after the train cars collide?   kg •  

How to tell if a molecule is polar or nonpolar with electronegativity