In a trivia contest, players form teams and work together to earn as many points as possible for their team. Each team can have between 3 and 5 players. Each player can score up to 10 points in each round of the game. Elena and four of her friends decided to form a team and play a round. Write an expression, an equation, or an inequality for each quantity described here. If you use a variable, specify what it represents.

the number of points that Elena's team earns in one round

the number of points Elena's team earns in one round if every player scores between 6 and 8 points

the number of points Elena's team earns if each player misses one point

the number of players in a game if there are 5 teams of 4 players each

the number of players in a game if there are at least 3 teams