An object is launched from a platform. Its height in meters, x seconds after the launch, is modeled by −3(x+4)2+108. After how many seconds does the object reach the max. height? What is the max. height?

Alocal hamburger shop sold a combined total of 601 hamburgers and cheeseburgers on friday. there were 51 more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday? a local hamburger shop sold a combined total of hamburgers and cheeseburgers on friday. there were more cheeseburgers sold than hamburgers. how many hamburgers were sold on friday?