Seems to me that the function doesn't match the story problem much. could use a hand figuring this out!

Plz, ! the box plot below shows the total amount of time, in minutes, the students of a class surf the internet every day: a box plot is shown.part a: list two pieces of information that are provided by the graph and one piece of information that is not provided by the graph. (4 points) part b: calculate the interquartile range of the data, and explain in a sentence or two what it represents. (4 points) part c: explain what affect, if any, there will be if an outlier is present. (2 points)

Can someone me and do the problem plz so i can understand it more better

Which shows the correct solution of the equation 1/2a+2/3b=50, when b=30?