Answer:
-68
Step-by-step explanation:
-28 + - 40 =
2 + 4 = 6
8 + 0 = 8 making
-68
hope this helped
Step-by-step explanation:
12 - 9 + c = 12
-9 + c = 12 - 12
- 9 + c = 0
Therefore c = 9
Hope this helps.!
Answer Standard form
Step-by-step explanation:
Answer:
the mean for the data set is 129.3
