A parabola opening up or down has vertex (0, –
7) and passes through (
–
6,2). Write its equation in vertex form.
Simplify any fractions.

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

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.

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals