An arithmetic sequence is given below.
24, 17, 10, 3
write an explicit formula for the nth term an.

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

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?

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square