A roller coaster car at an amusement park will seat 3 people. In how many different ways can Maryanne and Helen sit in the car, leaving one seat empty?

ab will be equal to

a line is an defined derm because it

a)contains an infinite number of points b) can be used to create other geometric shapes c)describes something that does not have width or depth d) is a term that does not have a formal definition. a line is an undefined term because it: contains an infinite number of points.