Simplify n/12+4 when n=4

The median of a data set is the measure of center that is found by adding the data values and dividing the total by the number of data values that is the value that occurs with the greatest frequency that is the value midway between the maximum and minimum values in the original data set that is the middle value when the original data values are arranged in order of increasing (or decreasing) magnitude

The function models the number of accidents per 50 million miles driven as a function

What is the radius of the cone in the diagram? round your answer to the nearest whole number