Help how do I do this?

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?