Answer:
The answer is c
Step-by-step explanation:
The middle problem is adding, the others are taking away, so C is the correct answer
7.4
Gud luck on the rest of your school work :)
168
132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168
it is 20.5
you need to add all of the numbers together