Answer:
8,8,8,7
Explanation:
5,6,7,8,8,10,12
8 is the median since its the number in the middle
8 is the mode since it is the repeated number
7 is the range since 12-5 is 7
all the numbers added and divided by the number of numbers is the mean
(5+6+7+8+8+10+12)/7=8