True or false: Vertical angles are the top and bottom angles of the four angles formed by two intersecting lines.

How many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Solve the equation - 2(m -30) = -6m a-15 b-13 c-8 d8

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?