Find the values of l and m that make each equation true
(7+m)+(4l-10)i=3 - 6i

Find the measure of the interior angles of the following regular polygons: a triangle, a quadrilateral, a pentagon, an octagon, a decagon, a 30-gon, a 50-gon, and a 100-gon.

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?