Answer:
73
Step-by-step explanation:
72 - 35 = 107
180 - 107 = 73
107 + 73 = 180
The answer is D because when you insert it into a calculator it gives you D. Yet, if you do it manually you still get the same number .
Answer:
1.5
Step-by-step explanation:
To find the mean, we must add all of our terms, and then divide by the number of terms.

Solve:

Since we have seven terms, we must divide our total (
), by seven.
÷ 
Solve:
÷ 
Therefore, the mean is 
Answer:
(-2,-5)
Step-by-step explanation: