What number should go in the box?

Abag of popcorn contains 483 calories and servers 3.5 people. how many calories are in each serving.

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species

Write an equation for the function that includes the points (1,4/5) and (2,2/3)