The mean age of 6 women in an office is 24 years old. The mean age of 9 men in an office is 27 years old.
What is the mean age (nearest year) of all the people in the office?

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}

See attachment below and find the equivalent of tan(∠qsr)

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches.approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *