You and your friend are standing back-to-back. your friend runs 16 feet forward and then 12 feet right. at the same time, you run 12 feet forward and then 9 feet right. you stop and throw a baseball to your friend, who catches it. how far did you throw the baseball?

Malia is observing the velocity of a cyclist at different times. after two hours, the velocity of the cyclist is 15 km/h. after five hours, the velocity of the cyclist is 12 km/h. part a: write an equation in two variables in the standard form that can be used to describe the velocity of the cyclist at different times. show your work and define the variables used. (5 points) part b: how can you graph the equations obtained in part a for the first 12 hours? (5 points) if you can try and make this as little confusing as you can

How do i do this activity, is appreciated

Ammonia molecules have three hydrogen atoms and one nitrogen atom.how many of each atom arein five molecules of ammonia