I assume you're looking for the sum.
I would use the null property to eliminate 0
34+0+18+26
=34+18+26
then use commutativity to rearrange
=34+26 + 18
Add 34+26=60
=60+18
=78
Answer: A
Step-by-step explanation: when the ratios of apples to plums (9:15) is simplified, it is 3:5
There are 3 interior angles.