Jerry, is an electrician, worked 7 months out of the year. what percent of the year did he work?

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}

The diameter of a circular chip is doubled to use in a new board game. the area of the new chip will be

What is the distance between point a and b