Someone please help! i’ll give extra points

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

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

How do you create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1?