What are the median and modes of the following data set: 13, 17, 21, 24, 24, 27, 28, 29, 31, 31, 31, 32, 34, 34, 43, 44

What is the value of the digit 1 in the number 13?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

Aculinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as much as a student meal. what is the cost of an adult meal?