Which expression below has a Coefficient of 3?

List the elements of the set in roster notation. (enter empty or ∅ for the empty set.) {x | x is a letter in the word hippopotamus}

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank