The last one is correct because 60+35+35+35=165
55+55+55=165
Answer:
425
Step-by-step explanation:
First follow the order of operations so do the parentheses first.
30-2(7+2)-1
30-2(9)-1
Then multiplication
30-18-1
Then left to right
12-1
Then again
So your answer is 11
Hope that helps. Feel free to ask any questions.