Here's how to figure out this problem: add up all the numbers in the mark category and divide by the # of numbers there are.
So....
6 + 7 + 8 + 9 + 10 ÷ 5 = 8
8 is your final answer.
Pretty sure it’s b, good luck
By applying 2×pie×radius (radius+height)
This answer comes 1925000mm^3
I think it’s 311.75?
i added the closing balances and divided by the 4 selected days
either that or 44.54 if you divide by 28 days of February instead…
i might be wrong though