1 Select the correct answer.
I + 3
Which expression is equivalent to 12 – 21
12 + 21 - 3
I + 1 if no denominator equals zero?
3
O A.
OB.
12 – 21
3
1
2 - 41 + 3
1
12 + 21 - 3
OC.
OD.
I + 3
I + 1
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