How do i solve it by substitution? y=-24x-6y=-20

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

Planning for the possibility that your home might get struck by lighting and catch on fire is part of a plan for ?

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.