1the average of 3 6 9
2 average of 15 5 8 and 4
3 mary had 6 buns jim had 10 buns jack had 5 buns what's the average
4 14 9 and 7 what's the average

1. 3 + 6 + 9 = 18
18/3 = 6 --> The average is 6
2. 15 + 5 + 8 + 4 = 32
32/4 = 8 --> The average is 8
3. 6 + 10 + 5 = 21
21/3 = 7 --> The average is 7
4. 14 + 9 + 7 = 30
30/3 = 10 --> The average is 10

The density of the cube is 40