The mean mass of the 11 players in a football team is 80.3kg. a new player joins the team and the mean goes up to 81.2kg. find the mass of the new player.

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic.org

Acampus club held a bake sale as a fund raiser, selling coffee, muffins, and bacon and eggs sandwiches. the club members charged $1 for a cup of coffee, 3$ for a muffin , and $4 for a back. and egg sandwich. they sold a total of 55 items , easing $119. of the club members sold 5 more muffins than cups of coffee, how many bacon and egg sandwiches he’s did they sell

Math i have no idea how to do a and b