The following tables represent the number of weeks and pounds lbs of weight loss for Cindy and Mark What is the average rate of change for Cindy and Mark Cindy Time weeks Weight pounds Mark 0 143 1 0 138 2 135 135 3 4 Time weeks 1 2 3 4 Weight pounds 245 240 237 232 226 5 133 130 5 5 220 A Cindy 2 5lb loss a week Mark 5lb loss a week B Cindy 3lb loss a week Mark 5 25lb loss a week C Cindy 5lb loss a week Mark 2 5lb loss a week D Cindy 5 25lb loss a week Mark 3lb loss a week