What is the value of x if 3x - 6 = 21 ?

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.