Please please help me no links

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

Question 5 spring semester final exam math evaluate

What is the name used to describe a graph where for some value of x, there exists 2 or more different values of y?