Simplify the expression using properties of operations. 5(x−4)+2x

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

The graph of a quadratic function has a maximum at point (0, 5). the graph contains the point (2, 1). what is another point on the graph?

M∠abc=138° and m∠def=31° . which statement is true about ∠abc and ∠def ? a: the angles are neither complementary nor supplementary. b: the angles are complementary. c: the angles are supplementary.