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If you want to find n you would have to find out how to get 16 to 8. Well you divided by 2, so if you do it the same way to 40 to n, your way of solving it will be 40/2, which gets you 20. 20 is your answer.
Answer:
20
Explanation:
16 ÷ 2 = 8
40 ÷ 2 = 20