Please helppp me

Given this information, which expression must represent the value of b?

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

Nellie is analyzing a quadratic function f(x) and a linear function g(x). will they intersect? f(x) g(x) graph of the function f of x equals one half times x squared, plus 2 x g(x) 1 5 2 10 3 15