7.Arya is evaluating the expression 21 ÷ [5 × 2 − (12 ÷ 3) + 1]. Her first step is shown: 21 ÷ [5 × 2 - (12 ÷ 4)]. Is Arya's first step of the solution correct?
No. Arya first find 3 + 1 when she should have found 21 ÷ 5 first.
Yes. Arya's first step is correct; she should first find 3 + 1.
No. Arya first find 3 + 1 when she should have found 12 ÷ 3 first.
No. Arya first find 3 + 1 when she should have found 2 − 12 first.
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Answer:
No. Arya first find 3 + 1 when she should have found 12 ÷ 3 first.