Mean, Median, and Range Practice Test

In a data set of 12 values, the median is 45 and the range is 30. If 5 is added to each value, what will be the new median and new range, respectively?

A class of 24 students took a test. The mean score was 78 and the median was 80. If the teacher decides to give 2 bonus points to every student, which statement about the new statistics is correct?