Answer :

Answer:

14.5

Step-by-step explanation:

15 - (12 -2.5) + 9

1. Solve the Parenthesis first

12 - 2.5 = 9.5

So now we get 15 - 9.5 + 9

2. Solve the minus first

15 - 9.5 = 5.5

So now we get 5.5 + 9

3. Add

5.5 + 9 = 14.5

Answer:

564

Step-by-step explanation:

multiply then change sign then add all

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