Who else is feeling freaky today?

I'm being volume of cylinder with 13 in. radius and 30 in height answer choices in pic

Which statement about perfect cubes is true

Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =