Raul tried to evaluate an expression step by step. 3-(-5) - 7
=3+5 - 7
Step 1
=3 + 2
Step 2
=5
Step 3
Find Raul's mistake.
Choose 1
Step 1
Step 2
Step 3
Raul did not make a mistake

What is the base of 1/9 to the power of 2

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