Answer:
85
Step-by-step explanation:
Write the numbers in order
66, 72, 74, 80, 83, 87, 91, 95, 98, 99
Find the middle number
83 and 87 are in the middle, so find the mean of them. 83+87= 170
170/2 = 85.
50 ml of water should be added in the glass.
sorry I don't know
sorry
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150 is a good sample of a middle school and students at lunch is random again because most students eat lunch
1/3
Think about it