List 3 value that would make this inequality true 8n+4 greater than or equal to 28

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Standard deviation of 19,29,21,22,23

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?