? 2.03 + 121.96 – 55.98 + 129.78% of 59.98 = 399.98
ATQ, ?2.03 + 121.96 – 55.98 + 129.78% of 59.98 = 399.98 ?2 + 122 – 56 + 130% of 60 ~ 400 ?2 + 66 + 78 ~ 400 ?2 ~ 256 ? ~ ±16
Which of the following is a sources of primary data?
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