A local hamburger shop sold a combined total of 428 hamburgers and cheeseburgers on Sunday. There were 72 fewer cheeseburgers sold then hamburgers. How many hamburgers were sold on Sunday. Pl he

Sandy is upgrading her internet service. fast internet charges $20 for installation and $52.45 per month. quick internet has free installation but charges $57.45 per month. part 1 out of 2 complete the equation that can be used to find the number of months after which the internet service would cost the same. use the variable x to represent the number of months of internet service purchased.