Agroup of 23 friends gets together to play a sport. first, people must be divided into teams. each team has to have exactly 4 players, and no one can be on more than one team. how many teams can they make? (it is possible that not everyone can be on a team.)

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Place the following steps in order to complete the square and solve the quadratic equation,

Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.