PLEASE HELP ME...to solve some question...btw...pls check my answer wether correct or not..tq♥

Which of the following is a business practice to reduce coast by controlling all aspects of production in an industry

For each of the following examples of data, determine which scale of measurement is used. a) the number of miles joggers run per week. b) the starting salaries of graduates of mba programs c) the months in which a firm's employees choose to take their vacations. d) the final letter grades received by students in a math course.

Which statement about spreading knowledge of diseases and health around the world is correct?